|
Mineral Specimens with Cassiterite
(click on a page number to go to that page:)
page 8 / 13 - prev - 186 specimens selected - next
6.1 x 4.6 x 1.7 cm. An attractive Cassiterite specimen from Cornwall with bright, lustrous, jet-black twinned crystals. The piece is from the collection of Richard Kosnar and his hand-written label is glued to the back. The label states that the piece was received in trade from a museum in Prague, and there is a small white label with the number "2352" on the reverse side of the piece.
8.1 x 7.3 x 5.3 cm. Bolivia has probably produced more tin than any other country in the world. The great tin mines at Viloco (sometimes called Araca) have produced some of the most magnificent Cassiterite specimens extant. This particular specimen hosts literally hundreds of superb quality, sharp, highly lustrous, black and gemmy brown cyclic twinned crystal groups with gem Quartz crystals.
6.9 x 5.1 x 3.5 cm. This is a very important specimen for the locality. A sharp, twinned crystal approximately 4 cm in length, incredibly lustrous and fine. From the personal collection of a miner-collector I trade with. This is one of the finest and most significant Brazil cassiterites I have ever seen.
2.4 x 2.3 x 1.8 cm. Being an unusual combination in any case, and an elegant matrix thumbnail at the same time, makes this a very distinct aquamarine specimen for any thumbnail collection. The cassiterite is 1.5 cm across, and the aquamarine and cassiterite are both complete around the other side. Ex. Laura and Stevia Thompson Collection.
6.3 x 4.6 x 3.3 cm. Bolivia has probably produced more tin than any other country in the world. The great tin mines at Viloco (sometimes called Araca) have produced some of the most magnificent Cassiterite specimens extant. This particular specimen hosts several superb, sharp, highly lustrous, very bright, black cyclic twinned crystals measuring up to 2.5 cm across with gemmy crystals of Quartz and small tan "discs" of Siderite. A very attractive association specimen from this historic locality.
2.7 x 2.6 x 2.2 cm. A bizarre, very surprising locality piece especially as it comes from a mine which has produced so little. Cassiterite, pegmatitic in origin here, is very rare in the county. Ex. William Larson Collection.
3.3 x 2.7 x 2.5 cm. Bolivia has probably produced more tin than any other country in the world. The great tin mines at Viloco (sometimes called Araca) have produced some of the most magnificent Cassiterite specimens extant. This particular specimen hosts several fine, sharp, lustrous, gemmy, golden-brown, cyclic twinned crystals measuring up to 1.6 cm and associated with gemmy, prismatic Quartz crystals. Viloco is certainly the premier locality for Cassiterite specimens when it comes to Bolivian mines.
7.8 x 6.2 x 4.8 cm. A 1.9 x 1.7 cm cluster of sharp, mirror-bright, jet-black cassiterite crystals is aesthetically set in the undulating matrix of grayish, pearlescent muscovite blades with snow-white albite crystals. Cassiterite of this quality is rare for Pakistan and this is an excellent piece with great display aesthetics.
3.8 x 3.3 x 2.1 cm. This important specimen is a cluster of extremely lustrous cassiterite crystals to 2 cm, with excellent lustre for a Cornish specimen. It is most likely, by comparison to known specimens, from the Wheal Kea area. Ex. Gary Hansen and Smith College Collections.
3.2 x 1.9 x 1.9 cm. Gemmy and lustrous, sharp, brown cassiterite crystals form a very fine two-sided miniature from recent finds at an uncommon deposit in Yunnan Province, China. The unretouched backlit photo highlights the gemminess and rich colors.
5.1 x 3.7 x 3.0 cm. A superb specimen of cassiterite from this classic Russian locale. Most such crystals are small, and rather unattractive. This is a beautiful crystal with sharp symmetry and stark jet black color, plus lustre. It is complete-all-around, except for some contacting on a few lower back faces. The termination, in particular, is complete and symmetric all around, showcasing this unusual pyramidal termination that the locality is known for.
6.6 x 5.4 x 2.2 cm. The world’s gemmiest cassiterite crystals have, in the past, come from Viloco. Some Chinese crystals, some very few, now match them - but these have historicaly set the standard. However, specimens of this quality are now very scarce in the mineral market. This particular specimen is a cluster of lustrous, gemmy, brownish-tan cassiterite crystals to 2.2 cm in length. The crystal on the top left-hand side is not only gemmy but it is also classically twinned. A superb old specimen with no damage to the display face except at the bottom periphery and one contacted small crystal atop. Ex. Dr. Edward David Collection.
6.3 x 3.2 x 2.8 cm. An unusually large twinned, partial cassiterite crystal from the old locality. Ex. Richard Hauck Collection.
5.0 x 3.7 x 1.8 cm. Sharp lustrous cassiterite crystals of the rare habit from here. Ex. Richard Hauck Collection.
2.5 x 2.1 x 1.9 cm. From a recent find, strange and sharp pegmatitic cassiterite. Quite nice in person. Shaped like a spaceship. A floater.
(click on a page number to go to that page:)
page 8 / 13 - prev - 186 specimens selected - next
Rob Lavinsky, rob@irocks.com
All Content and Design ©1996-2012 The Arkenstone
Mineral Specimens by species; or
by specimen id.
|
share specimen![Cassiterite from Botallack Mine, Botallack, Botallack - Pendeen Area, St Just District, Cornwall, England, UK [db_pics/mdpics/MD-253925a.jpg]](db_pics/mdpics/MD-253925a.jpg)
![Cassiterite from Botallack Mine, Botallack, Botallack - Pendeen Area, St Just District, Cornwall, England, UK [db_pics/mdpics/MD-253925b.jpg]](db_pics/mdpics/MD-253925b.jpg)
![Cassiterite, Quartz from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-255161a.jpg]](db_pics/mdpics/MD-255161a.jpg)
![Cassiterite, Quartz from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-255161b.jpg]](db_pics/mdpics/MD-255161b.jpg)
![Cassiterite, Muscovite from Araçuaí, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-256774a.jpg]](db_pics/mdpics/MD-256774a.jpg)
![Beryl (Var: Aquamarine), Cassiterite from Shengus (Shingus), Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan [db_pics/mdpics/MD-257478a.jpg]](db_pics/mdpics/MD-257478a.jpg)
![Cassiterite, Quartz, Siderite from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-258670a.jpg]](db_pics/mdpics/MD-258670a.jpg)
![Cassiterite from Pack Rat Mine, Mt. Tule, Jacumba District, San Diego Co., California, USA [db_pics/mdpics/MD-259949a.jpg]](db_pics/mdpics/MD-259949a.jpg)
![Cassiterite, Quartz from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-260019a.jpg]](db_pics/mdpics/MD-260019a.jpg)
![Cassiterite, Muscovite, Albite from Shengus (Shingus), Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan [db_pics/mdpics/MD-260125a.jpg]](db_pics/mdpics/MD-260125a.jpg)
![Cassiterite, Muscovite, Albite from Shengus (Shingus), Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan [db_pics/mdpics/MD-260125b.jpg]](db_pics/mdpics/MD-260125b.jpg)
![Cassiterite from Cornwall, England, UK [db_pics/mdpics/MD-260456a.jpg]](db_pics/mdpics/MD-260456a.jpg)
![Cassiterite from Amo Sn deposit, Ximeng Co., Pu'er Prefecture, Yunnan Province, China [db_pics/mdpics/MD-261476a.jpg]](db_pics/mdpics/MD-261476a.jpg)
![Cassiterite from Amo Sn deposit, Ximeng Co., Pu'er Prefecture, Yunnan Province, China [db_pics/mdpics/MD-261476b.jpg]](db_pics/mdpics/MD-261476b.jpg)
![Cassiterite from Miass (Miask), Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia [db_pics/mdpics/MD-262119a.jpg]](db_pics/mdpics/MD-262119a.jpg)
![Cassiterite from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-263163a.jpg]](db_pics/mdpics/MD-263163a.jpg)
![Cassiterite from Horní Slavkov (Schlaggenwald), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic [db_pics/mdpics/MD-263164a.jpg]](db_pics/mdpics/MD-263164a.jpg)
![Cassiterite from Horní Slavkov (Schlaggenwald), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic [db_pics/mdpics/MD-263164b.jpg]](db_pics/mdpics/MD-263164b.jpg)
![Cassiterite from Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia [db_pics/mdpics/MD-263165a.jpg]](db_pics/mdpics/MD-263165a.jpg)
![Cassiterite from Shengus (Shingus), Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan [db_pics/mdpics/MD-263167a.jpg]](db_pics/mdpics/MD-263167a.jpg)