Goethite and Moonstone Physical Properties

Goethite

Moonstone

Add ⊕

Physical Properties

Tenacity

Solubility

HCl soluble

Durability

Specific Gravity

4.27-4.292.56-2.60

1 7.18

👆🏻

Fracture

Uneven

Uneven, ConchoidalWalter Schumann

Cleavage

Perfect {010}

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

Mohs Hardness

5-5.56-6.5

2 10

👆🏻

Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Goethite and Moonstone Chemical Formula

While comparing Goethite and Moonstone 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 Goethite and Moonstone chemical formula.

Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Compare Brown Gemstones

Goethite Vs Manganaxinite

Goethite Vs Mellite

Goethite Vs Povondraite

Goethite and Moonstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.