TY - JOUR

T1 - Crystallochemical formulas and definition of species of tourmaline-group minerals

AU - Zolotarev, A. A.

AU - Frank-Kamenetskaya, O. V.

AU - Rozhdestvenskaya, I. V.

PY - 2007/12

Y1 - 2007/12

N2 - The complex chemical composition of tourmalines, in combination with various mechanisms of isomorphic substitutions, creates difficulties in recalculating the chemical data to the crystallochemical formulas. In each case, the calculated formula is no more than a result of an author's interpretation and hence any formula is a far or close approach to the reality. Different modes of representing the composition of tourmaline-group minerals are discussed in this paper. Special attention is drawn to uncertainties, controversies, and mistakes in writing the crystallochemical formulas and to the problems that emerge in attempts to define species of tourmaline-group minerals from the calculated formulas.

AB - The complex chemical composition of tourmalines, in combination with various mechanisms of isomorphic substitutions, creates difficulties in recalculating the chemical data to the crystallochemical formulas. In each case, the calculated formula is no more than a result of an author's interpretation and hence any formula is a far or close approach to the reality. Different modes of representing the composition of tourmaline-group minerals are discussed in this paper. Special attention is drawn to uncertainties, controversies, and mistakes in writing the crystallochemical formulas and to the problems that emerge in attempts to define species of tourmaline-group minerals from the calculated formulas.

UR - http://www.scopus.com/inward/record.url?scp=38049161507&partnerID=8YFLogxK

U2 - 10.1134/S1075701507070100

DO - 10.1134/S1075701507070100

M3 - Article

AN - SCOPUS:38049161507

VL - 49

SP - 547

EP - 553

JO - Geology of Ore Deposits

JF - Geology of Ore Deposits

SN - 1075-7015

IS - 7

ER -