Actinolite and Herderite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.00
  
2.90-3.02
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Splintery
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
perfect along {110}.
  
Indistinct on {110}
  
Mohs Hardness
5-6
  
5-5.5
  
Chemical Composition
Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
  
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
  
Actinolite and Herderite Chemical Formula
While comparing Actinolite 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 Actinolite and Herderite chemical formula.
- Chemical formula of Actinolite- Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Actinolite and Herderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Actinolite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Actinolite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Actinolite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.