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Adamantine Spar

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Formula:
Al2O3
Colour:
Brown
Lustre:
Silky
Hardness:
9
A variety of Corundum

A silky brown variety of corundum.


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Physical Properties of Adamantine SparHide

Silky
Colour:
Brown
Hardness:
Hardness Data:
Measured

Chemical Properties of Adamantine SparHide

Formula:
Al2O3

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Adamantine SparHide

Reference List:
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Black (1780)(in Greville, Royal Society of London, Phil. Trans., 1798, and in Klaproth, A. Berlin, Mem., 1786-1787).
Read, P.G. (1988), Dictionary of Gemmology, 2nd. ed., Butterworth-Heinemann, Oxford, UK: 4.
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 520.

Internet Links for Adamantine SparHide

Localities for Adamantine SparHide

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
India
Pearl, 1964. Gems, Minerals, Crystals & Ores
Mineral and/or Locality  
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