Minerals | By_Name | By_Class | Carbonates | Calcite

Calcite Specimens



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# CAL-160, $50.00 Sold!
Dims: 4.78x2.79x2.24in (12.13x7.08x5.69cm) .... Wt: 44oz (1249g) .... Loc: Hunan Province, China
While this specimen does show some damage to the crystal tips and edges, and the base is entirely formed of cleavage planes, it's still a nice large specimen of calcite from Hunan, China. It is almost transparent, showing red and black inclusions.
# CAL-159, $37.00 Sold!
Dims: 5.06x2.92x1.62in (12.84x7.42x4.12cm) .... Wt: 12.0oz (340g) .... Loc: Santa Eulalia District, Chihuahua, Mexico
All of the sparkly crystals on this specimen appear to be calcite. The original host rock is likely goethite, largely coated with limonite, which is covered with a druze of calcite colored red by the underlying limonite and/or by limonite inclusions. A loupe reveals a large number of crystal forms, always possible with calcite. There are a few places with cleavage that reminds me of gypsum, but those crystals seem too hard for that, so I suspect it's really just more calcite.
# CAL-181, $45.00 Sold!
Dims: 2.51x1.52x1.13in (6.37x3.86x2.88cm) .... Wt: 3.6oz (101g) .... Loc: Smith County, Tennessee, USA
This is a nice cluster of four intergrown scalenohedral calcite crystals. They have a very pale honey color, almost colorless, whose transparency is obscured by a myriad of internal veils and fractures. They reside on a base of sphalerite crystals. The calcite crystals have an unusual pattern of intergrowth, where the two largest crystals seem to have fought a war of dominance, each winning on one side or the other.
# CAL-173, $30.00 Sold!
Dims: 2.57x1.51x1.14in (6.53x3.83x2.88cm) .... Wt: 2.72oz (77.0g) .... Loc: Santa Eulalia, Chihuahua, Mexico
This is a nice cluster of well-formed calcite scalenohedrons. The crystals are a very dark brown, have a high luster, and an interesting surface texture.
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Minerals | By_Name | By_Class | Carbonates | Calcite

 

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