ENUntitled Page 44
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| C-display coll number | Min. Cryst syst. | Comp. Descrip. | O.N. old number S.C. stud. Coll |
|---|---|---|---|
| C 405 | Quartz- Pet.Wood crypto-cryst Hex Trypto | SiO2 replaced by SiO2 on ionic (tiny) scale. | -- |
| C 406 | Quartz- Pet Wood " | " " " | labeled A. |
| C 407 | (1) Quartz-var Flint- "crypto (2) " " Chert " | SiO2 black, brittle, conchoidal coated with chalk (CaCO3) SiO2 li-gray-round-[Dr?] crack nodule | none S.C.1934 |
| C 408 | " Siliceous ? " Sinter | SiO2 The Geysir-banded geyserite area-brown and white | ON 512 |
| C 409 | " " " | SiO2 geyserite white fibrous porus | none |
| C 410 | Opal mineraloid amorphous | SiO2 n H2O-H=5 1/2-6 1/2 : G= 1.95-2.3 (Brown =FeO)OH) "Jasper Opal" yellow-brown | O.N 897 |
| C 411 (a) and (b) | (2 specs) " " | " " from 4 miles " pink-br. (b) and brown (a) | 902 and 900 (b) (a) |
| C 412 | " " | SiO2 and H2O apalized wood ( brown black white) | S.C. 1723 |
| C 413 | " A small spec (a)-(b)-(c) gem | SiO2 and H2O " opal - (a and b fluoresce - greenish- | none |
| C 414 (a) and (b) | Quartz-crystalline | " SiO2 (a) 1st layer cryst. qtz.; center chalcedony novaculite (b) botryoidal -last thin coating-chalcedonic,-under-1st layer | O.N. 1063 none? |
| C 415 " (1) " (2) " (3) " (4) | Pegmatites (Ign. rock) (crystal peak colo?) " " " (" graphic granite " " " | -Residual fluids conc rarer and accessoly minerals and granite-minerals -smoky quartz and microclint or perthite (microcline -Albite, Quartz(gray), Muscovite books in contact-concordant with Bolton Schist "Biotite mira (black) books quartz (gray) microclump white but with muscovite-same | S.C. 1905 -none none none |
| C 416 | Muscovite monocl. | KAI2 (OH)2 AlSi3O16 {white potash l sing less} "Fish tail" | " |
| C 417 | Muscovite " | " Ruggles Mine, Grafton n.h. with some faldspar and quartz | O.N 1026 |
| C 418 a b " " | Tourmaline Hexag schorl. ditrigonal pyramid | (a) M7 B3 Al3 (AlSi2O9)3 (O, OH, F)4 Black Trigonal x-sec. striation parallel to c axis, length radial divergent xstls " " rosettes (2) M=Li, na, K, Fe, mg, mn, and ca (b) "same-large and black Trymal, terminated strated crystals mostly in Qtz (+ and - rhombohedrons in b) | (a) O.N. 1010. (b) O.N. 387 |
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