| | Book (edition) | authigenic acn1ite is found in rocks of the Green River formation in Utah, Wyo1ning, and Colorado. Typical...Ledge mine , San Juan County, Colorado; at Green River, ALUNOGEN 15 Utah; and coating limestone at Joplin...the north bank of Mosquito Fork of the Forty Mile River, Alaska. BEST REF. IN ENGLISH: Jelly , James H....crusts, or massive. Twinning on {111} common, as spinel twins. COLOR-LUSTER: Steel gray with reddish tint;...crystals in cavities in large concretions in Fall River, Meade, and Pe1u1ington Counties, Souili Dakota; |
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Leglier river, Aldan, Sakha, Russia