Herderite and Caledonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.02
5.6-5.76
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Cleavage
Indistinct on {110}
[001] perfect; [100] distinct
Mohs Hardness
5-5.5
2.5-3
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Herderite and Caledonite Chemical Formula
While comparing Herderite and Caledonite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Herderite and Caledonite chemical formula.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
- Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Herderite and Caledonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Herderite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.