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Ch. 13: Olivine - Sphene

Ch. 13: Olivine - Sphene Page of 311 Ch.14: Apatite - Jet Text size:minus plus Restore normal size   Mail page  Print this page
282                               PRECIOUS STONES.
Crystals up to 2-1/2 inches long suitable for gem use have been found near Bridgewater Station, in Delaware County in Pennsylvania ; good specimens are also obtained from the Alps. All the gem stones it may resemble are harder than Sphene.
Ch. 13: Olivine - Sphene Page of 311 Ch.14: Apatite - Jet
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