Gemmology
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Fluorite — specimen 0138, photo © NMNHS
Fluorite — specimen 0138, photo © NMNHS

Fluoritespecimen 0138

Origin

South America
Brazil
Fluorite — specimen 0138, locality map
Data

Weight: 3.86 ct; size: 11.18 | 9.18 | 6.07 mm; shape: oval; colour: medium very strongly bluish green; slightly greyish; clarity: eye clean; cut: fair; treatment: none.
Notes

Very clean specimen; mixed style cut.

Other specimens
Fluorite — specimen 0137

More information from ‘Classification’


An accessory mineral in granite, granite pegmatites, syenites; around fumaroles; in carbonatites and alkaline intrusives. Economic deposits in low- to high-temperature hydrothermal veins and stratabound deposits; a cement in sandstones (Anthony et al., 2001—2005). There are faceted specimens over 3900 carats (Arem, 1987: 99).