amphibole group

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  • noun

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a group of minerals with similar crystal structures containing a silicate chain and combinations of chiefly sodium and calcium and magnesium and iron and aluminum

References in periodicals archive ?
Colorless grains, and colorless, well-formed, hexagonal prisms up to 3 mm have been observed embedded in dike rock containing phenocrysts of an undetermined amphibole group mineral.
Phonolite sills Cavities Sill Dikes* Lime Mineral Quarry Upper Lower Rock Cavities Rock stone Aegirine R R Albite C VC C Almandine VR VR Amphibole group C VC Analcime C R VC VR R Anatase VR VR VR VR Ankerite C C R Apatite group VR R VR R Baddeleyite VR ER VR Barite C R C VR Bastnasite series ER ER Biotite group VR ER VR C Brookite R R R Calcite VC VC VC C R VC Celestine C R VC VR Cerussite ER ER Chromite ER ER Cristobalite R R VR Crocoite ER ER Cryolite R R R Dachiardite-Na ER ER ER Dawsonite VC VC VC VC VR Dickite ER ER Dolomite R VR R R C Doyleite VR VR VR Dresserite C C Elpidite VR VR Fluorite VC C VC ER R Franconite ER ER Galena R R R Garronite-like m.
Relationship to other species: It is a member of the amphibole group, specifically the sodic subgroup, and it is the K-dominant analogue of leakeite, Na[Na.
Name: Follows the IMA approved nomenclature for the amphibole group.
2], a new mineral species of the amphibole group (Ilmen Mountain, the South Urals).
Relationship to other species: It is a new member of the amphibole group.
As stated in the "Note added in proof" to The First List of Additions and Corrections to the Glossary of Mineral Species 7th Edition (1995), a major revision of the classification and nomenclature of the Amphibole Group has been published in several mineralogical journals.
The classification of the Amphibole Group has been revised by a subcommittee of the Commission on New Minerals and Mineral Names (CNMMN) of the International Mineralogical Association (IMA).
9, forms a series with Tremolite and Ferro-actinolite, Amphibole group, Can.
with Cummingtonite, forms a series with Ferro-anthophyllite, Amphibole group, Can.
forms a series with Magnesio-arfvedsonite, Amphibole group, Can.
forms a series with Ferrobarroisite, Amphibole group, Can.
7) In the long (33 pages) section dealing with the Amphibole Group, some of the species names are strangely written.
93-026 A member of the amphibole group Monoclinic: C2/m a 9.
These can be structurally divided into two main groups, the serpentine and amphibole groups.