Calcite & Fluorite Specimens
FALL SALE 25 - 50% OFF ALL MINERAL SPECIMENS
Sylvania Minerals Quarry, South Rockwood, Monroe County, MI
11.1 x 6.5 x 5 cm
A matrix specimen of honey-yellow Calcite crystals with white Celestite crystals. The Calcite crystals are mostly transparent and undamaged. Both the Celestite and the Calcite exhibit moderate fluorescence. The very tips of the Calcite fluoresce yellow-white, while the Celestite has white fluorescent overgrowths.
Santa Eulalia District, Municipio de Aquiles Serdán, Chihuahua, Mexico
7.5 x 4.6 x 4.7 cm
This is a type of Calcite that came out a long, long time ago from Santa Eulalia and has been unavailable - until a recent find in 2007. These Calcites are instantly recognizable by their strange form: an earlier generation of dark, opaque, hematite-included scalenohedral crystals seeming to emerge from within a later generation of translucent crystals of a lighter color. This specimen is undamaged and is from the original find.
with sand inclusions
Rattlesnake Butte, Jackson County, SD
6.2 x 5.5 x 2.7 cm
A sculptural pair of interconnected, scalenohedral Calcite crystals. The Calcite grew in a sand matrix, capturing the sand as it formed making for an unusual specimen. Sand Calcites are poikiloblastic Calcite crystals included by a large amount of Quartz sand, sometimes exceeding 50%. These specimens were collected heavily in the 1960s-1970s but are seldom seen these days as much of this area is within an Indian reservation and collecting is prohibited.
Stoneco White Rock Quarry, Clay Center, Ottawa County, OH
6.5 x 6.3 x 3.9 cm
A cluster of lustrous, light-yellow, scalenohedral Calcite crystals, some of which are double-terminated on a matrix that is sprinkled with many millimeter-sized crystals of Celestite. The Calcites are translucent and all are undamaged. Uncommon material from a mine that is better known for its Fluorite And Celestite specimens.
Hilton Deposit, Borrego Springs, San Diego County, CA
29 x 17.3 x 11.5 cm
A dramatic and huge plate of large Calcite crystals of from south-eastern San Diego County. This impressive specimen features translucent-transparent, bladed crystals of Calcite measuring up to 10 centimeters in size. The Calcite crystals fluoresce a light-hued red\pink color. Known by locals as "The Calcite Mine" this location was operated from 1942 to 1944 for the Polaroid Corporation to produce optic grade Calcite in order to make the Polaroid Optical Ring Gun-sight. This specimen was a part of my award winning mineral collection and was judged best specimen from San Diego County and won the prestigious Josephine Scripps award in the mineral competition at the San Diego County Fair where there is some serious competition from local "heavy-weight" type mineral collectors. This location has been off-limits to collectors since 1974 when the area surrounding it was designated Anza-Borrego Desert State Park.
pseudomorph after Ikaite (Glendonite)
Carter Creek, North Slope Borough, AK
7.3 x 2.4 x 2.4 cm
A doubly-terminated pseudomorph/alteration specimen of "Glendonite" from one of America's northernmost mineral localities. These specimens start out as the mineral Ikaite which is calcium carbonate but with a handful of water molecules attached to it. Once the Ikaite reaches a temperature above 8°C (46°F), it alters to Calcite.
St. Francisville, Clark County, Missouri
9 x 6 x 4 cm
A showy specimen of translucent and lustrous Calcite crystals inside of a Quartz-lined Geode. This specimen is from an obscure location and is older material that is not often seen for sale.
Bou Azzer District, Tazenakht, Ouarzazate Province, Drâa-Tafilalet Region, Morocco
9.5 x 4.7 x 7.2 cm
A geode filled with many lustrous and clear crystals of Calcite measuring up to 1.7 centimeters in size. If you examined, in person, the matrix that these occur in, you'd be surprised that they can be extracted more or less intact.
C-123 Calcite on Siderite SOLD
Turt Mine, Satu Mare, Maramures, Romania
7 x 6.5 x 3 cm
A very interesting specimen from a well-known Romanian mineral location. This specimen features a 2 x 2 cm. crystal of Siderite that has replaced the mineral Calcite, with many smaller sphere-shaped stacks of Siderite, upon which sit numerous clusters of Calcite exhibiting the same peculiar habit.
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