A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . any specimensfrom sightless lumps of mineral, in which the imprisoned crystalswere scarcely suspected) the multiple silicate of aluminum, iron,lead, strontium, and magnesium, is shown in two specimens, oneof which, perhaps obtained before the identification was made, islabeled what is this? The Scandinavian Allanite is characteristic and handsome,with good Ural specimens, (Bucklandite, 11888) ; axinite, is abeauty spot in collections th
A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . any specimensfrom sightless lumps of mineral, in which the imprisoned crystalswere scarcely suspected) the multiple silicate of aluminum, iron,lead, strontium, and magnesium, is shown in two specimens, oneof which, perhaps obtained before the identification was made, islabeled what is this? The Scandinavian Allanite is characteristic and handsome,with good Ural specimens, (Bucklandite, 11888) ; axinite, is abeauty spot in collections though in a crystallographic way themineral seems monotonous. The Swiss specimens are very beauti-ful, with admirable Dauphiny groups, (note 11938-39), and darkpurple broad crystals from Tasmania, the Cornish specimens(11951) curious, and the Franklin Furnace ones, lit up with rho-donite, very effective. Prehnite collections have been greatly enriched in the speci-mens of this species, by the beautiful examples from the New Jer-sey trap dikes. The Tyrol, Dauphiny France, Scotland, finds rep- A .-<^ifeL 1 M ^ i^*^ i .-_^^ ? ^^ H < z b£ = t(. oO «. E 3 M T3 tn t—1 C % Cti be c < c o m W o (J pa BEMENT COLLECTION 293 resent it in collections previous to i860, and since then the BergenHill, Paterson, gems have paled, by their splendor, their Europeanrivals. Among the Bement specimens Nos. 11997-98-99-12000,12003, 04, 05, are conspicuous. 12018 from Keweenaw Co. Mich,shows green combs of crystals enclosing copper grains. Cuspidine(2 spec), Hiimite, succeed, and then a handsome suite of Chon-drodite, which is astonishingly rich in specimens from the TillyFoster mine, N. Y. There are excellent Swedish chondrodites butthe Brewster crystals are superb (12037-80). Ilvaite, the usual Elba crystals (now difficult to obtain) infine examples (12096,-97,-99, 12100, 01, 03,-110) ; ardcnnitc, orangecrystals from Belgium; langhanite, black crystals from Sweden;kentrolite, melanotekite
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmineral, bookyear1912
