This stunning Calcite specimen is from a new find in China distinguished by bright, golden Pyrite, which has grown along the edges of some of the Calcite crystals. A real beauty !
Thunder Bay, Ontario, Canada is a region with various Amethyst mines. The specimens from this area are very recognizable. They look reddish brown in color due to hematite inclusions, which have no effect on the crystal's luster. Good pieces from Thunder Bay are recognized and sought after the world over by collectors due to their uniqueness and beauty.
A big impressive combination specimen of lustrous black botryoidal Heterogenite with lighter-green Chrysocolla. The combination yields an almost "wet" appearance
Beautiful Calcite crystals up to 2.5 cm with gray inclusion of microscopic Marcasite crystals defining phantom crystal shapes.
#A1076 Apophyllite on Prehnite
Centreville, Fairfax County, Virginia
8 x 4.5 x 3.5 cm
$300 (Reduced from $400)
Gorgeous light green translucent crystals of Apophyllite on Prehnite from Virginia of all places.
Location of Fairfax County in Virginia
#A1078 Mimetite
Mun. de Mapimí, Durango, Mexico
8 x 7.5 x 2.5 cm
$150 (Reduced from $200)
Mimetite, whose name derives from the Greek mimethes, meaning "imitator", is an arsenate mineral which forms as a secondary mineral in lead deposits, usually by the oxidation of galena and arsenopyrite. The name is a reference to mimetite's resemblance to the mineral pyromorphite. This resemblance is not coincidental, as mimetite forms a mineral series with pyromorphite (Pb5(PO4)3Cl) and with vanadinite (Pb5(VO4)3Cl). The most notable occurrences are Mapimi, Durango, Mexico and Tsumeb, Namibia (From Wikipedia, the free encyclopedia).
Very attractive plate of yellow- green botryoidal Mimetite.
Root beer colored Fluorite crystals with Celestite. Fluorite from the limestone quarries of Ohio is often a pretty tan or brown. caused by organic petroleum compounds caught up in the fluorite’s structure.
Tarnobrzeg is a town in south-eastern Poland, on the east bank of the river Vistula, with 51,300 inhabitants (2001). Situated in the Subcarpathian Voivodship (Polish: Województwo Podkarpackie) since 1999, it had previously been the capital of Tarnobrzeg Voivodship (1975-1998). The city was a major center for the mining and processing of sulphur and sulphuric acid. However, its mines have since closed having been deemed uneconomic. The mine in Piaseczno was closed first, followed by the Machów mine (after 40 years of working — it had been the biggest open-cast sulphur mine in Europe), and finally the Jeziórko mine in the 1990s.
Since the 1980s, the land in the mining areas has gradually been reclaimed. The Machów mine has been filled with water to form a reservoir used for recreation, and the same is happening with the Jeziórko mine — it is being slowly filled from the nearby Vistula river (From Wikipedia, the free encyclopedia).
Fine specimen of Sulfur crystals with Calcite and Celestite from the long closed Machow Mine in Poland.
#B2044 Microcline with Smoky Quartz
Rumi Tucu Mine, Papachacre, Catamarca Province, Argentina
9 x 5.5 x 5.5 cm
$250 (Reduced from $500)
Location of Catamarca Province in Argentina
(From Wikipedia, the free encyclopedia)
Very nice specimen of off white Microcline crystals with interspersed Smoky Quartz crystals (which are natural). You don't see many good mineral specimens from Argentina.
#E5048 Demantoid Garnet on Matrix
Near Kandahar, Afghanistan
9.1 x 7.5 x 4.4 cm
$500 (Reduced from $700)
Alexander the Great founded Kandahar in the 4th century BC. Many empires long fought over the city, due to its strategical location along the trade routes of Central Asia. In 1748, Ahmad Shah Durrani, the founder of the Afghan Empire, made Kandahar the capital of modern Afghanistan
(From Wikipedia, the free encyclopedia).
Flag of Afghanistan
Very, very rare Demantoid Garnets from a find in Afghanistan. This plate has dozens of gemmy, lustrous, light grass green Demantoids to about 0.6 cm. Get this great specimen, while you can, as you want see them very often.
Demantoid is the green gemstone variety of the mineral andradite, a member of the garnet family of minerals. Andradite is a calcium- and iron-rich garnet, and is a distinct mineral species from the aluminium- and iron-rich reddish almandite garnets typically seen in jewelry stores. It is the most expensive and rare of garnet gemstones, with fine specimens commanding prices of thousands of dollars per carat (thousands per gram). The chemical formula is Ca3Fe2(SiO4)3 with chromium substitution as the cause of the demantoid green color. Ferric iron is the cause of the yellow in the stone.
It is sometimes referred to by the misleading name "Uralian emerald"
(From Wikipedia, the free encyclopedia).
#E5052 Calcite Phantoms (Large Plate)
Leiping Mine, Guiyang, Chenzhou Prefecture, Hunan Province, China
16.6 x 14 x 4.5 cm
$375 (Reduced from $425)
SOLD
Flag of China
Great plate of lustrous Calcite crystals with beautiful pyramidal terminations and phantoms inside from a previous generation of growth. These crystals fluoresce nicely. A few minor contacts are not significant considering size of specimen. Apparently, the mining of these in China has finished and they are no longer easily found on the market.
