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> Crystals
> Calcite
> GS0078 Details | Optical Calcite Specimens | | | | | | Optical calcite is noted for its rhombohedral shape (prism with six faces) and double refraction of light. It is translucent—sometimes transparent—whereas regular calcite is opaque. | | | | Click on a Code below to see product information and price | | Clear: | Code OPTC1 | | Clear: | Code OPTC2 | | Golden: | Code HCO2 | | Golden: | Code HCO7 | | | | | | For the products below dimensions are measured at the widest points. Dimensions and weight are approximate and include, when applicable, the matrix. |
| | Clear Optical Calcite Specimen Top↑ | | Code: | OPTC1 | | Source: | Mexico | | Length: | 40 mm (1.6 in) | | Height: | 37 mm (1.5 in) | | Width: | 32 mm (1.3 in) | | Weight: | 134 gr (4.7 oz) | | Price: | $24.00 CAD | | | | Natural (uncut and unpolished) | | Very transparent—you can easily read text through it. At certain angles, due to the bending of the light as it passes through, images appear double. | | | | | | Unique product | | You will receive the exact item shown in the photograph. |
| | Clear Optical Calcite Specimen Top↑ | | Code: | OPTC2 | | Source: | Mexico | | Length: | 46 mm (1.8 in) | | Height: | 44 mm (1.7 in) | | Width: | 30 mm (1.2 in) | | Weight: | 149 gr (5.3 oz) | | Price: | $28.00 CAD | | | | Natural (uncut and unpolished) | | Very transparent—you can easily read text through it. At certain angles, due to the bending of the light as it passes through, images appear double. | | | | | | Unique product | | You will receive the exact item shown in the photograph. |
| | Golden Optical Calcite Specimen Top↑ | | Code: | HCO2 Sold | | Source: | Brazil | | Length: | 33 mm (1.3 in) | | Width: | 15 mm (.6 in) | | Depth: | 16 mm (.6 in) | | Weight: | 20 gr (.7 oz) | | Price: | $3.00 CAD | | | | Natural (uncut and unpolished) | | Light golden colour. Incredible rainbows appear throughout when held at certain angles. | | | | | | Unique product | | You will receive the exact item shown in the photograph. |
| | Golden Optical Calcite Specimen Top↑ | | Code: | HCO7 Sold | | Source: | Brazil | | Length: | 41 mm (1.6 in) | | Height: | 29 mm (1.1 in) | | Width: | 28 mm (1.1 in) | | Weight: | 95 gr (3.4 oz) | | Price: | $13.00 CAD | | | | Natural (uncut and unpolished) | | Light gold with a brownish tint from certain angles. | | | | | | Unique product | | You will receive the exact item shown in the photograph. |
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