
| Danburite Faceting Rough Charcas, San Luis Potosi
I have danburite faceting rough in stock. Prices depend on size, quality and order size. Most of the danburite shows a very weak pink color. Please inquire for further details. There are also a few large pieces like the example in the image. It measures 6.7 x 4.5 x 3 cm and has a weight of 117.4 g. The area suitable for cutting comprises about 30% of the piece. The price is 175 EUR. A cut stone of at least 30 carat should
result. |
| CH-20 : Danburite crystal Charcas, San Luis Potosi Specimen size: 5.0x2.6x1.8 cm Description: colourless danburite crystal of gem
quality in the upper half of the crystal. Note the rare pinacoide face at the crystal termination. Price: 80 EUR |
| CH-28 : Danburite crystal Charcas, San Luis Potosi Specimen size: 16x5x3.5 cm Description: 16 cm long colourless danburite twin crystal with internal fractures, of gem quality at the crystal tip. The crystals twin plane is parallel to the C-axis, some alteration and fine-grained sugary quartz appear in the centre of the crystal along the twin plane. Price: 170 EUR |
| CH-29 : Danburite crystal Charcas, San Luis Potosi Specimen size: 10x3x2 cm Description: 10 cm long colourless danburite twin crystal with internal fractures. The crystal tip is of gem quality and shows well developed crystal faces with step-like growth at the pinacoid face. The crystals twin plane is
parallel to the C-axis. Price: 70 EUR |
| CH-30 : Danburite crystal group Charcas, San Luis Potosi Specimen size: 6.5x4.5x2 cm Description: group of three
intergrown doubly terminated danburite crystals, largest is 5.8 cm long. Price: 65 EUR |

| CS-01: Calcite Charcas, San Luis Potosi Specimen size: W.7.5 D.7.0 H.3.0 cm Description: tabular transparent calcite crystals to a
width of 2.5 cm are perched on compactly shaped calcite crystals with tiny inclusions of ore minerals. A superb calcite specimen without damage. Price: 100 EUR |

| CS-02: Calcite Charcas, San Luis Potosi Specimen size: W.8.0 D.4.0 H.4.5 cm
Description: thin blades of light-green calcite to a width of 5 cm. Price: 50 EUR |

| CS-03: Calcite Charcas, San Luis Potosi Specimen size: W.24 D.16.0 H.3.0 cm Description: plate with calcite crystals to 1.5 cm. The
calcite crystals (pinacoid and rhombohedral faces) are covered with golden-brown colored limonite. Price: 75 EUR |
| CH-31: Citrine Charcas, San Luis Potosi Specimen size: L: 43, W: 30, D: 25 mm Description: single composite crystal of gemmy natural citrine (not heat treated) with intense yellow color. Although broken off at its base there appear numerous doubly terminated secondary crystals around the main crystal. Near the tip of the main crystal occur internal fractures. The crystal tip itself is slightly damaged. This specimen represents an old find. Price: 95 EUR |
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| CS-04: Calcite Charcas, San Luis Potosi Specimen size: W: 40, D: 30, H: 38 mm Description: a very nice specimen with a 22 mm long calcite crystal twinned along (100). Calcite crystals are overgrown by white heulandite blades. The red color zones in the calcite are caused by
inclusions. Very little damage at the crystal tip, but still an exceptional specimen for this location. Price: 35 EUR |

| CH-32: Pseudomorphed pyrrhotite on danburite Charcas, San Luis Potosi Specimen size: W: 5.0, D: 2.0, H: 4.5 cm
Description: A 4.5 cm high hexagonal-shaped pyrrhotite crystal has been replaced completely by pyrite and an unidentified black mineral (possibly a clay mineral). It is perched on a brown danburite crystal. A very unusual specimen from Charcas. Price: 100 EUR |
| CH-33: Amethyst, Danburite, Calcite Charcas, San Luis Potosi Specimen size: W: 7.0, D: 4.0, H: 6.0 cm Description: This attractive specimen consists in an older generation of broken off danburite crystals (to 6 cm length) overgrown by danburite needles and a central amethyst crystal, 2.5 cm long. As latest generation appear white calcite skalenohedrons to 2 cm in
size and some green chlorite. A new find from September 2004 in the deepest mine level. Price: 175 EUR |
| CH-38: Calcite with Pyrite above Danburite and Quartz Charcas, San Luis Potosi Specimen size: W: 8.0, D: 7.0, H: 5.0 cm Description: Danburite and Quartz crystals are covered with a mm-thick crust of pyrite, exhibiting a nice iridescence. Yellowish skalenohedral calcite crystals appear as late generation. Price: 100 EUR |