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Spurrite
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Geliefert zwischen Di., 18.11.2025 und Mi., 19.11.2025
Details
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Spurrite is a white, yellow or light blue mineral with monoclinic crystals. Its chemical formula is Ca5(SiO4)2CO3. Spurrite is generally formed in contact metamorphism zones as mafic magmas are intruded into carbonate rocks. Spurrite''s space group is P 2/a. It is biaxial with a birefringence of 0.0390-0.0400, giving second order red interference colors when viewed under crossed polarizers in a petrographic microscope. The calcium is in six-fold coordination with the oxygen, the silicon is in a four-fold coordination with the oxygen and the carbon is in two-fold coordination. One unique characteristic of spurrite is that it actually abides by two twin laws. Polysynthetic twinning can occur along its (001) and another type of twinning can occur parallel to its optical axes.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130978648
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Genre Chemie
- Größe H220mm x B220mm
- EAN 9786130978648
- Format Fachbuch
- Titel Spurrite
- Herausgeber Betascript Publishing
- Anzahl Seiten 88
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