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PLAGIOCLASE - LoveToKnow Article on PLAGIOCLASE (Site not responding. Last check: 2007-10-20) |
 | | This variation is continuous in the series, but specific names are applied to members falling between l certain arbitrary limits, viz.: Albite, Ab (= NaAlSiaOs); |
| | the Oligoclase, AbeAm to AbiAni; Andesine, AbiAn1 to Ab1Ani; Labradorite, AbiAni to AbiAna; Bytownite, Ab1Ani to AbiAns; Anorthite, An (= CaAlsSisOs). |
| | All the members of the series crystallize in the anorthic (triclinic) system. |
| 11.1911encyclopedia.org /P/PL/PLAGIOCLASE.htm (755 words) |
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