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Mineral Specimens with Quartz
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10 x 7 x 7 cm. An exceptional combination piece of unusual, and very attractive, stark white Orthoclase crystals intergrown with gemmy Smoky Quartz and Schorl needles. All on granite, with a small amount of Hyalite Opal as a bonus: an incredible fluorescent accent. The Orthoclase crystals are tabular, with the largest ones being 3.5 cm, and twinned. The gemmy Smoky Quartzes are more on the order of 1 cm, as are the Schorls. I've not quite seen the likes of this specimen before. It is a great piece from a famous location, but more than that it is just unusual from anywhere, in its overall aspect. Ex. Charlie Key.
5.8 x 5 x 4 cm. A fine combination piece of one large (4 x 3 cm) Schorl with two fine Smoky Quartz crystals (up to 5 cm). The Schorl has superb luster and form, and the Smoky Quartzes are gemmy with silky, striated faces. The tips are also zoned a darker smoky hue. For the region, or for anywhere, this is really a great combination piece. Even better and more 3-dimensional in person. Ex. Charlie Key Collection.
11 x 8 x 7.5 cm. An exceptional, artistic combination of Aquamarine, Smoky Quartz, and Schorl from the Erongo Mountains. Rarely do you find these three in combination, and when you do, they are hardly ever in this quality. The Aquamarines are superb: excellent deep to light blue color, gemmy terminations, and glassy luster (faces and terminations). The largest of the Smoky Quartzes is 6.6 cm, and doubly terminated. They are translucent and elegantly tapered. The Schorls add wonderful contrast, and they have excellent to slightly etched luster. Ex. Charlie Key.
29 x 19 x 10 cm. An outrageous, amazing large cabinet specimen from the Orange River area. There are lustrous and Gemmy Smoky Quartz crystals, some grading into Amethyst, that grow across the side of this gigantic single Quartz crystal. The largest of the Smoky Quartzes is 3.5 x 3.5, while many of the tabular flat-lying crystals average 2.5 cm in size, with the largest being 4.5 cm. They all have superb luster, color, and gemminess. An aesthetic and entrancing large showpiece, quite unusual in size and appearance for this locale. Ex. Charlie Key.
3.7 x 2.9 x 2.4 cm. This specimen was found about 5-6 months ago (2009), and is one of the more attractive Cassiterite association specimens that I have encountered. 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 host of several fine, sharp, highly lustrous, black-brown cyclic twinned crystals measuring up to 1.1 cm across which are associated with very eye-catching Quartz crystals that actually have small Smoky Quartz "phantoms" in the center of the prisms.
10.3 x 7.8 x 6.7 cm. Monazite gets its name from the Greek word "monazein", which means "to be alone", in allusion to its isolated crystals and their rarity when first found. Monazite is usually found in granitic pegmatites, but these crystals are found in hydrothermal tin veins where is an absolute absence of Thorium (usually a trace element in Monazite). This is a remarkable, very well crystallized, very rare, specimen consisting of sharp, lustrous, translucent, orange-pink, twinned crystals on Monazite-(Ce) measuring up to 5 mm on Quartz crystals on matrix. This piece is from the same mine for which this material was discovered along the Contacto and San Jose veins in this mine and was first described by Sam Gordon and Mark Bandy. These crystals also do a color change from indoor lighting to sunlight (more pink indoors).
4.2 x 3.8 x 1.7 cm. A fine miniature size specimen featuring excellent quality, doubly-terminated, sharp, gemmy, lustrous, prismatic, purple color "reverse" scepter crystals and simple prisms of Amethyst measuring up to 2.5 cm sitting atop grey modified rhombohedra of Calcite on matrix. This piece is remarkable for Bolivia as it features a type of crystallization that is virtually unheard of from any mine down there.
3.6 x 2.6 x 2.0 cm. A classic example of this well known material featuring a bright, metallic, foliated, hexagonal, silvery color crystal group of splendent Molybdenite on grey/white Quartz matrix. Ex. Brian Kosnar Collection.
7.9 x 5.1 x 4.7 cm. When it comes to Aquamarine, Pakistan is the most productive country for specimens in the modern age of mineral collecting. Some of the very finest quality Aquamarine specimens come from the various pegmatites in the Pakistani Himalayas, especially in the Shigar Valley. Matrix specimens of Aquamarine are still fairly uncommon in the world, and to find an association piece such as this is a real treat. The piece hosts a solitary, euhedral, pale blue color, prismatic crystal of Aquamarine measuring 1.7 cm long which is protruding from a matrix comprising sharp, well-formed, distinct, snow-white crystals of Albite.
3.7 x 2.5 x 1.7 cm. Richard Kosnar mined the Sweet Home for a few years during the late 1970's and managed to collect some excellent specimens. This piece is from one of the first pockets that Rich opened when he started mining the Sweet Home. Apatite is rather rare in my experience from the Sweet Home mine. This specimen features a few sharp, glassy, translucent bicolor (green and colorless), doubly-terminated Apatite crystals measuring up to 6 mm sitting on "needle" Quartz matrix with minor sulfides. This piece was collected in 1977 out of a very small pocket that only produced a handful of these very hard to find Apatite specimens. Ex. Richard Kosnar Collection.
7.5 x 6.1 x 4.1 cm. A rare matrix Gold specimen from the classic mining district around Alma, Colorado. The piece features small patches of bright Gold set against a gemmy to opaque grey Quartz matrix having a slickenside surface. This piece is from the Richard A. Kosnar Colorado collection, (specimen number 55/143), and his label indicates that it was mined circa 1870. The Phillips Lode (mine) was located in 1860 by Joseph Higginbotham, aka "Buckskin Joe", whom the gulch in which this mine (and several other including the Sweet Home) was named after. The back of the label states that this piece was once part of the Butler family collection (G. Montague Butler, Bert S. Butler and Waldo Butler). Bert S. Butler wrote many USGS Professional Papers during the 1920s and 1930s, and Rich Kosnar obtained much of his collection from his son Waldo.
9.8 x 6.4 x 3.5 cm. These specimens are some of the most classic Quartz pseudomorphs or "casts" from any world locality. This specimen is a great example showing the perfect octahedral form of the previous Fluorite crystals along with the thin tabular form of the Anhydrite crystals which were replaced coated by small, almost "sugary", translucent, white Quartz crystals. The Fluorite and Anhydrite crystals were then dissolved away by a solution that entered the pocket at a later date, leaving behind only the Quartz crystal "crust". A wonderful specimen from a district that produced some of the most classic "casts" from all of Colorado.
MD-273381 - Zanazziite, Wardite, Quartz, Quartz (Var: Rose Quartz) - - Archived
Ilha claim, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil
miniature, 4.3 x 2.4 x 2.0 cm.
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4.3 x 2.4 x 2.0 cm. This is a superb specimen of a rare phosphate from a world-famous locality. Zanazziite is a Hydrated Calcium Magnesium Iron Aluminum Beryllium Phosphate. This piece hosts several well-formed, translucent, olive-green crystal groups of the rare phosphate Zanazziite (up to 1 mm) which is aesthetically sitting on crystals of white Wardite (measuring up to 6 mm across) and a matrix of translucent white Quartz and Rose Quartz. The association of the Wardite combined with the Zanazziite crystals make this piece a great treasure. This specimen is over 30 years old and is from the original find from the 1970's. Ex. Richard Kosnar Collection.
Unusual and rare occurrence of wet-looking apple green, barrel shaped crystals on a white quartz matrix. This piece probably dates back to the 19th Century heyday of Cornwall and green pyros are one of the great classics of these mines! 5.7 x 3.1 x 3.1 cm
A really interesting specimen with 8 separate crystals of classic multicolored Stak Nala tourmaline jutting out perpendicular to the plane of the big quartz crystal. You just do not see large matrix specimens from here at all - most are floaters and in any case smaller in size. This piece, thus, is really quite unique in appearance. The tourmalines are extremely glassy and more colorful in person. They are mostly undamaged, save for the smallest which is broken off and the rightmost cluster which has one clean repair. Very unusual for the find (early 1990s). 11.6 x 8.2 x 6.1 cm
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Rob Lavinsky, rob@irocks.com
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Mineral Specimens by species; or
by specimen id.
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![Quartz (Var: Smoky Quartz), Orthoclase, Schorl, Opal (Var: Opal-AN) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-273178a.jpg]](db_pics/mdpics/MD-273178a.jpg)
![Quartz (Var: Smoky Quartz), Orthoclase, Schorl, Opal (Var: Opal-AN) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-273178b.jpg]](db_pics/mdpics/MD-273178b.jpg)
![Quartz (Var: Smoky Quartz), Orthoclase, Schorl, Opal (Var: Opal-AN) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-273178c.jpg]](db_pics/mdpics/MD-273178c.jpg)
![Quartz (Var: Smoky Quartz), Schorl from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-273201a.jpg]](db_pics/mdpics/MD-273201a.jpg)
![Beryl (Var: Aquamarine), Quartz (Var: Smoky Quartz), Schorl from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-273204a.jpg]](db_pics/mdpics/MD-273204a.jpg)
![Beryl (Var: Aquamarine), Quartz (Var: Smoky Quartz), Schorl from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-273204b.jpg]](db_pics/mdpics/MD-273204b.jpg)
![Quartz (Var: Smoky Quartz), Quartz (Var: Amethyst), Quartz from Orange River, Warmbad, Great Namaqualand, Karas Region, Namibia [db_pics/mdpics/MD-273206a.jpg]](db_pics/mdpics/MD-273206a.jpg)
![Quartz (Var: Smoky Quartz), Quartz (Var: Amethyst), Quartz from Orange River, Warmbad, Great Namaqualand, Karas Region, Namibia [db_pics/mdpics/MD-273206b.jpg]](db_pics/mdpics/MD-273206b.jpg)
![Quartz (Var: Smoky Quartz), Quartz (Var: Amethyst), Quartz from Orange River, Warmbad, Great Namaqualand, Karas Region, Namibia [db_pics/mdpics/MD-273206c.jpg]](db_pics/mdpics/MD-273206c.jpg)
![Cassiterite, Quartz from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-273335a.jpg]](db_pics/mdpics/MD-273335a.jpg)
![Cassiterite, Quartz from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-273335b.jpg]](db_pics/mdpics/MD-273335b.jpg)
![Monazite-(Ce), Quartz from Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosà Department, Bolivia [db_pics/mdpics/MD-273339a.jpg]](db_pics/mdpics/MD-273339a.jpg)
![Monazite-(Ce), Quartz from Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosà Department, Bolivia [db_pics/mdpics/MD-273339b.jpg]](db_pics/mdpics/MD-273339b.jpg)
![Monazite-(Ce), Quartz from Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosà Department, Bolivia [db_pics/mdpics/MD-273339c.jpg]](db_pics/mdpics/MD-273339c.jpg)
![Quartz (Var: Amethyst), Calcite from Bombori, Chayanta Province, Potosà Department, Bolivia [db_pics/mdpics/MD-273346a.jpg]](db_pics/mdpics/MD-273346a.jpg)
![Molybdenite, Quartz from Moly Hill mine, La Motte, Abitibi RCM, Abitibi-Témiscamingue, Québec, Canada [db_pics/mdpics/MD-273352a.jpg]](db_pics/mdpics/MD-273352a.jpg)
![Beryl (Var: Aquamarine), Quartz, Albite from Shigar Valley, Skardu District, Baltistan, Northern Areas, Pakistan [db_pics/mdpics/MD-273355a.jpg]](db_pics/mdpics/MD-273355a.jpg)
![Apatite-(CaF), Quartz from Sweet Home Mine (Home Sweet Home Mine), Mount Bross, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-273361a.jpg]](db_pics/mdpics/MD-273361a.jpg)
![Apatite-(CaF), Quartz from Sweet Home Mine (Home Sweet Home Mine), Mount Bross, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-273361b.jpg]](db_pics/mdpics/MD-273361b.jpg)
![Gold, Quartz from Phillips Mine, Alma, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-273364a.jpg]](db_pics/mdpics/MD-273364a.jpg)
![Gold, Quartz from Phillips Mine, Alma, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-273364b.jpg]](db_pics/mdpics/MD-273364b.jpg)
![Quartz from Gladstone Mine, Gladstone, Eureka District, San Juan Co., Colorado, USA [db_pics/mdpics/MD-273366a.jpg]](db_pics/mdpics/MD-273366a.jpg)
![Zanazziite, Wardite, Quartz, Quartz (Var: Rose Quartz) from Ilha claim, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-273381a.jpg]](db_pics/mdpics/MD-273381a.jpg)
![Zanazziite, Wardite, Quartz, Quartz (Var: Rose Quartz) from Ilha claim, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-273381b.jpg]](db_pics/mdpics/MD-273381b.jpg)
![Pyromorphite, Quartz from Wheal Alfred, Phillack, St Erth - Gwithian Area, Cornwall, England, UK [db_pics/mdpics/MD-27384a.jpg]](db_pics/mdpics/MD-27384a.jpg)
![Tourmaline, Quartz from Stak Nala, Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan [db_pics/mdpics/MD-27429a.jpg]](db_pics/mdpics/MD-27429a.jpg)