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Herderite
Herderite
☒

Franklinite
Franklinite
☒



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Herderite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.90-3.02
Subconchoidal, Conchoidal
Indistinct on {110}
5-5.5
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
 
-
-
-
5.05-5.22
Uneven
None
5.5-6
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Compare Colorless Gems

Colorless Gems

Phenakite
Phenakite
Phosphophyllite
Phosphophyllite
Zektzerite
Zektzerite
Franklinite
Hyalite
Franklinite Vs Hyalite
Franklinite
Muscovite
Franklinite Vs Muscovite
Franklinite
Oligoclase
Franklinite Vs Oligoclase

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