|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
MD-202106 - Chrysocolla, Tyrolite, Clinotyrolite - - Archived San Simon Mine, Santa Rosa-Huantajaya District, Iquique Province, Tarapacá Region, Chile cabinet, 14.1 x 8.0 x 7.8 cm.
14.1 x 8.0 x 7.8 cm. This specimen was presented to the academy by the famed Dr. Domeyko in the late 1800s, who did much work on the rare minerals of Chile and Argentina. Regardless of the chemistry, the specimen has merit as a display piece of beautiful copper combinations from Chile. This piece has beautiful, powder-blue chrysocolla forming as stalactitic growths and as a thin carpet in the few hollow vugs inside a literal boulder of nearly solid tyrolite. On analysis by modern equipment, the matrix material shows to be tyrolite, clinotyrolite, and possibly other related species admixed (XRAY and powder, Bart Cannon's lab, 2008). However, apparently the official mineralogy of tyrolite classification is confusing and has changed over time. Clinotyrolite is often considered a species by many people, though without IMA approval. I quote MINDAT's page on the matter verbatim to make sure I do not mistakenly convey the science: Since it is well-known that also carbonate-free varieties of tyrolite exist, "tyrolite" may actually represent two or more minerals/polytypes. At least two monoclinic polytypes of tyrolite are known (Krivovichev et al., 2006); one of them seems to be identical to "clinotyrolite". Note that this is the first report of the locality to MINDAT for tyrolite occurence, but it is likely that this rare species is present on other old specimens of "chrysocolla" from Chile. Ex. Academy of Natural Sciences Philadelphia Collection.
MD-202108 - Chrysocolla, Tyrolite, Clinotyrolite - - Archived San Simon Mine, Santa Rosa-Huantajaya District, Iquique Province, Tarapacá Region, Chile miniature, 4.0 x 2.6 x 2.6 cm.
4.0 x 2.6 x 2.6 cm. Ths specimen was presented to the academy by the famed Dr. Domeyko in the late 1800s, who did much work on the rare minerals of Chile and Argentina. Regardless of the chemistry, the specimen has merit as a display piece of beautiful copper combinations from Chile. This piece has beautiful, powder-blue chrysocolla forming as stalactitic growths and as a thin carpet in the few hollow vugs inside a literal boulder of nearly solid tyrolite. On analysis by modern equipment, the matrix material shows to be tyrolite, clinotyrolite, and possibly other related species admixed (XRAY and powder, Bart Cannon's lab, 2008). However, apparently the official mineralogy of tyrolite classification is confusing and has changed over time. Clinotyrolite is often considered a species by many people, though without IMA approval. I quote MINDAT's page on the matter verbatim to make sure I do not mistakenly convey the science: Since it is well-known that also carbonate-free varieties of tyrolite exist, "tyrolite" may actually represent two or more minerals/polytypes. At least two monoclinic polytypes of tyrolite are known (Krivovichev et al., 2006); one of them seems to be identical to "clinotyrolite". Note that this is the first report of the locality to MINDAT for tyrolite occurence, but it is likely that this rare species is present on other old specimens of "chrysocolla" from Chile. Ex. Academy of Natural Sciences Philadelphia Collection.
MD-202111 - Chrysocolla, Tyrolite, Clinotyrolite - - Archived San Simon Mine, Santa Rosa-Huantajaya District, Iquique Province, Tarapacá Region, Chile large cabinet, 15.1 x 9.9 x 7.0 cm.
15.1 x 9.9 x 7.0 cm. This specimen was presented to the academy by the famed Dr. Domeyko in the late 1800s, who did much work on the rare minerals of Chile and Argentina. Regardless of the chemistry, the specimen has merit as a display piece of beautiful copper combinations from Chile. This piece has beautiful, powder-blue chrysocolla forming as stalactitic growths and as a thin carpet in the few hollow vugs inside a literal boulder of nearly solid tyrolite. On analysis by modern equipment, the matrix material shows to be tyrolite, clinotyrolite, and possibly other related species admixed (XRAY and powder, Bart Cannon's lab, 2008). However, apparently the official mineralogy of tyrolite classification is confusing and has changed over time. Clinotyrolite is often considered a species by many people, though without IMA approval. I quote MINDAT's page on the matter verbatim to make sure I do not mistakenly convey the science: Since it is well-known that also carbonate-free varieties of tyrolite exist, "tyrolite" may actually represent two or more minerals/polytypes. At least two monoclinic polytypes of tyrolite are known (Krivovichev et al., 2006); one of them seems to be identical to "clinotyrolite". Note that this is the first report of the locality to MINDAT for tyrolite occurence, but it is likely that this rare species is present on other old specimens of "chrysocolla" from Chile. Ex. Academy of Natural Sciences Philadelphia Collection.
MD-207338 - Tyrolite - - Archived Großkogel Mt., St Gertraudi, Brixlegg - Rattenberg, Brixlegg - Schwaz area, Inn valley, North Tyrol, Tyrol, Austria small cabinet, 8.0 x 4.8 x 3.6 cm.
8.0 x 4.8 x 3.6 cm. Bright, beautiful, turquoise-blue, radial clusters of tyrolite crystals richly cover multiple sides of the contrasting matrix on this fine piece from a classic Austrian locality - Grosskogel Mountain, St. Gertraudi, Tyrol. Tyrolite is an uncommon copper arsenate and this fine piece is from near the Type Locality.
MD-240225 - Chrysocolla, Tyrolite, Clinotyrolite - - Archived San Simon Mine, Santa Rosa-Huantajaya District, Iquique Province, Tarapacá Region, Chile thumbnail, 2.8 x 2.7 x 2.3 cm.
2.8 x 2.7 x 2.3 cm. This thumbnail specimen was part of a much larger specimen presented to the Philadelphia Academy by Dr. Domeyko in the late 1800s, who did much work on the rare minerals of Chile and Argentina. Regardless of the chemistry, the specimen has merit as a display piece of beautiful copper combinations from Chile. This piece has beautiful, powder-blue chrysocolla forming as stalactitic growths and as a thin carpet in the few hollow vugs inside a matrix of nearly solid tyrolite. On analysis by modern equipment, the matrix material shows to be tyrolite, clinotyrolite, and possibly other related species admixed (XRAY and powder, Bart Cannon’s lab, 2008). However, apparently the official mineralogy of tyrolite classification is confusing and has changed over time. Clinotyrolite is often considered a species by many people, though without IMA approval. I quote MINDAT’s page on the matter verbatim to make sure I do not mistakenly convey the science: Since it is well-known that also carbonate-free varieties of tyrolite exist, "tyrolite" may actually represent two or more minerals/polytypes. At least two monoclinic polytypes of tyrolite are known (Krivovichev et al., 2006); one of them seems to be identical to "clinotyrolite". Note that this is the first report of the locality to MINDAT for tyrolite occurence, but it is likely that this rare species is present on other old specimens of "chrysocolla" from Chile. Ex. Academy of Natural Sciences Philadelphia Collection.
MD-255084 - Tyrolite - - Archived Novoveská Huta, Spišská Nová Ves Mining District, Eastern Slovenské Rudohorie Mts, Košice Region, Slovakia miniature, 4.8 x 2.7 x 1.3 cm.
4.8 x 2.7 x 1.3 cm. Tyrolite is an uncommon secondary copper arsenate found in the oxidized zone of copper deposits. Radial sprays of lustrous, very pretty turquoise-blue tyrolite lathes richly and attractively cover the matrix plate on this fine and highly representative specimen from the less well-known Novoveska Huta Mine of Slovakia. Ex. Wes Parker Collection.
MD-256893 - Tyrolite - - Archived Centennial Eureka Mine (Blue Rock), Tintic District, East Tintic Mts, Juab Co., Utah, USA large cabinet, 6.5 x 44.7 x 4.4 cm.
6.5 x 44.7 x 4.4 cm. Tyrolite is an uncommon secondary copper arsenate found in the oxidized zone of copper deposits. Radial sprays of lustrous, very pretty turquoise-blue tyrolite lathes richly and attractively cover the matrix plate on this fine and highly representative specimen from a historic and long-extinct Utah locale - the Centennial Eureka Mine, Tintic District. Very rich and highly representative of the species and locale.
PAS-187 - Chrysocolla in Tyrolite with Clinotyrolite - $ 1500 SOLD San Simon Mine, Huantajaya, Iquique Province, Tarapacá Region, Chile cabinet, 14.1 x 8.0 x 7.8 cm ex. Philadelphia Academy of Natural Sciences
These specimens (PAS-187 to PAS-189) were presented to the academy by the famed Dr. Domeyko in the late 1800s, who did much work on the rare minerals of Chile and Argentina. Regardless of the chemistry, the specimen has merit as a display piece of beautiful copper combinations from Chile. This piece has beautiful, powder-blue chrysocolla forming as stalactitic growths and as a thin carpet in the few hollow vugs inside a literal boulder of nearly solid tyrolite! On analysis by modern equipment, the matrix material shows to be tyrolite, clinotyrolite, and possibly other related species admixed (XRAY and powder, Bart Cannon's lab, 2008), However, apparently the official mineralogy of tyrolite classification is confusing and has changed over time. Clinotyrolite is often considered a species by many people, though without IMA approval. I quote MINDAT's page on the matter verbatim to make sure I do not mistakenly convey the science: Since it is well-known that also carbonate-free varieties of tyrolite exist, "tyrolite" may actually represent two or more minerals/polytypes. At least two monoclinic polytypes of tyrolite are known (Krivovichev et al., 2006); one of them seems to be identical to "clinotyrolite". . Note that this is the first report of the locality to MINDAT for tyrolite occurence, but it is likely that this rare species is present on other old specimens of "chrysocolla" from Chile.
PAS-188 - Chrysocolla in Tyrolite with Clinotyrolite - $ 400 San Simon Mine, Huantajaya, Iquique Province, Tarapacá Region, Chile miniature, 4.0 x 2.6 x 2.6 cm ex. Philadelphia Academy of Natural Sciences
These specimens (PAS-187 to PAS-189) were presented to the academy by the famed Dr. Domeyko in the late 1800s, who did much work on the rare minerals of Chile and Argentina. Regardless of the chemistry, the specimen has merit as a display piece of beautiful copper combinations from Chile. This piece has beautiful, powder-blue chrysocolla forming as a thin carpet in the few hollow vugs within nearly solid tyrolite! It is a beautiful miniature, trimmed by me from specimen PAS-187 above. On analysis by modern equipment, the matrix material shows to be tyrolite, clinotyrolite, and possibly other related species admixed (XRAY and powder, Bart Cannon's lab, 2008), However, apparently the official mineralogy of tyrolite classification is confusing and has changed over time. Clinotyrolite is often considered a species by many people, though without IMA approval. I quote MINDAT's page on the matter verbatim to make sure I do not mistakenly convey the science: Since it is well-known that also carbonate-free varieties of tyrolite exist, "tyrolite" may actually represent two or more minerals/polytypes. At least two monoclinic polytypes of tyrolite are known (Krivovichev et al., 2006); one of them seems to be identical to "clinotyrolite". . Note that this is the first report of the locality to MINDAT for tyrolite occurence, but it is likely that this rare species is present on other old specimens of "chrysocolla" from Chile.
PAS-189 - Chrysocolla in Tyrolite with Clinotyrolite - $ 1250 SOLD San Simon Mine, Huantajaya, Iquique Province, Tarapacá Region, Chile cabinet, 15.1 x 9.9 x 7.0 cm ex. Philadelphia Academy of Natural Sciences
These specimens (PAS-187 to PAS-189) were presented to the academy by the famed Dr. Domeyko in the late 1800s, who did much work on the rare minerals of Chile and Argentina. Regardless of the chemistry, the specimen has merit as a display piece of beautiful copper combinations from Chile. This piece has beautiful, powder-blue chrysocolla forming as a thin carpet in the few hollow vugs inside a literal boulder of nearly solid tyrolite! It is cheaper than the PAS-187 specimen only because the chrysocolla is not as well developed for display quality aesthetics - and yet the tyrolite and other rare minerals here are if anything in greater concentration by weight. On analysis by modern equipment, the matrix material shows to be tyrolite, clinotyrolite, and possibly other related species admixed (XRAY and powder, Bart Cannon's lab, 2008), However, apparently the official mineralogy of tyrolite classification is confusing and has changed over time. Clinotyrolite is often considered a species by many people, though without IMA approval. I quote MINDAT's page on the matter verbatim to make sure I do not mistakenly convey the science: Since it is well-known that also carbonate-free varieties of tyrolite exist, "tyrolite" may actually represent two or more minerals/polytypes. At least two monoclinic polytypes of tyrolite are known (Krivovichev et al., 2006); one of them seems to be identical to "clinotyrolite". Note that this is the first report of the locality to MINDAT for tyrolite occurence, but it is likely that this rare species is present on other old specimens of "chrysocolla" from Chile.
TUC115-183 - Tyrolite - $ 2500 SOLD Mammoth Mine, Tintic District, East Tintic Mts, Juab Co., Utah, USA miniature, 3.4 x 2.6 x 1.5 cm ex. American Museum of Natural History ex. Lawrence Conklin
Tyrolite is normally just crust on a rock , or small acicular crystals, from most locales that I have seen. This piece, however, features huge, intensely green crystals on matrix, and is probably from the early 1900s. It is attractive and incredibly rich for the species. ex Conklin collection, and formerly in the American Museum of Natural History. NOTE this piece is stabilised on teh backside, with glue (old). Joe Budd photos All Content and Design ©1996-2010 The ArkenstonePowered by http://mineralwebsites.comBy-species Galleries | ||||||||||||||||||||||||||||
