Liddicoatite and Herderite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.02
2.90-3.02
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{0001} Poor
Indistinct on {110}
Mohs Hardness
Not Available
5-5.5
Chemical Composition
Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Liddicoatite and Herderite Chemical Formula
While comparing Liddicoatite and Herderite 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 Liddicoatite and Herderite chemical formula.
- Chemical formula of Liddicoatite- Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Liddicoatite and Herderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Liddicoatite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.