 | | Book (volume) | | Bull. Geol. Soc. Amer:, The Geological Survey of Finland for diagrams from Bull. Comm. Geol. Finlande; Gauthier-Villars...diopside and 7-5 per cent, forsterite (Fig. 7). Spinel crystallizes from some compositions in this system...Olivine, with clinohumite in limestone, Ojama, Finland (Sahama, 1953). Olivine, forsterite—mica—magnetite...0-005. Olivine 11 rium with cordierite and spinel can co-exist at water vapour pressures above 15...Mg2Al4Si50i8 + Si02 + 24H20 clinochlore forsterite spinel cordierite Forsterite has also been crystallized |  | | Journal (issue) | | all of these crystals are interpenetration twins (spinel law) on {111}. Again selective etching away of...reconaissance of Shavano Peak by checking the ridge southwest of McCoy Creek (U.S.G.S., 1940). At the crest...from Zambonini, 1913). and Zussman, 1962 (a. Piukkala, Finland, b. Norberg, Sweden. 3 Gibbs and Ribbe, 1969...Jarosewich. 2Deer, Howie and Zussman, 1962 (a. Piukkala, Finland, b. Norberg, Sweden). 3 Gibbs and Ribbe, 1969...fine specimens from Zimbabwe (Rhodesia), India, Southwest Africa and , olm C 166 Bank Street (in G reenw |
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