Jacobsite and Milarite Physical Properties

Jacobsite

Milarite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.76-5.032.52-2.60

1 7.18

1.5 Fracture

Conchoidal, Brittle

Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

None

{0001} Imperfect, {1120} Imperfect

1.7 Mohs Hardness

5.5-6.55.5-6

2 10

1.8 Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Jacobsite and Milarite Chemical Formula

While comparing Jacobsite and Milarite 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 Jacobsite and Milarite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

Jacobsite Vs Manganaxinite

Jacobsite Vs Magnetite

Jacobsite Vs Marble

Jacobsite and Milarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Milarite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.52-2.60 whereas that of Milarite is 2.52-2.60.