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Holtedahlite
Type Locality
Tingelstadtjern Quarry, Modum, Buskerud, Norway
Mineral Data
Mg
2
(PO
4
)(OH)
Dimorph Of:
Althausite
Strunz:
8.BB.20
Physical Properties
Colour:
Colourless
Crystal System:
Trigonal
Hardness:
4.5 - 5.0
Synonyms
Synonyms:
IMA1976-054
