Wulfenite
| Refractive Index : 2.405 – 2.283 |
| Optical Characteristic : DR, uniaxial negative |
| Specific Gravity : 6.75 (+.10 -.10) |
| Formula : PbMoO4 |
| Crystal System : Tetragonal |
| Variety/Species : All |
| Species/Group : Wulfenite |
| Birefringence : .122 |
| Dispersion : .203 |
| Hardness : 2.5 to 3 |
| Toughness : Poor |
| Ultrasonic : Never |
| Steam : Never |
| UV Long : Inert |
| UV Short : Inert |
| Pleochroism : 2 colors |
| Strength : weak |
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| Pleochroism Colors : Weak, Orange yellow |
| Heat : Sensitive |
| Acids : Attacked by acids and/or chemicals |
| Light : Stable |
| Polish Luster : Adamantine to vitreous |
| Fracture : Subconchoidal to uneven |
| Fracture Luster : Greasy |
| Clarity Type : N/A |
| Tones : N/A |
| Saturations : N/A |
| Cause of Color : N/A |
| Enhancements : None |
| Cleavage : Distinct in 1 direction |
| Color Range : Red, orangy red, reddish orange, orange, yellowish orange, yellow, reddish |
| Transparency : Transparent to translucent |
| Phenomena : None |
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| Separations : Wulfenite from-
Scheelite : Polish luster, SG(possibly) |
| Identifying Characteristics and information Very strong doubling |
| Spectral Data Not diagnostic |
| Trade Names and Misnomers Wulfenite Yellow Lead Ore |
Tags: Wulfenite, Yellow Lead Ore
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