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MESH <> MICRON CONVERSION CHART

 

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PHYSICAL CHARACTERISTICS

Specific Gravity

4.1 to 4.3

Hardness (Moh)

7 7.5

Cleavage

None

Colour

Brownish red, Black red

Diaphaneity

Translucent to opaque

Tenacity

Brittle

Fracture

Conchoidal

Habit

Granular - Generally as Euhedral to Subhedral of octahedral crystals.

Luminescence / Luster

Non-fluorescent. / Vitreous - Resinous

Melting Point / Flashpoint

1250o C / Material is a non-flammable solid.

Shape of natural grains

sub-angular to Angular

Odour

No odour

Solubility in Water

Not soluble in water.

OTHER CHARACTERISTICS

Conductivity

< 150 uM/cm (very low)

Radioactivity

Not detectable

Moisture Absorption

Not detectable

Total Chlorides

Negligible

Free Iron

Less than 0.02%

Copper

Less than 0.01%

Other Heavy Metals

Less than 0.01%