About Plattnerite
Lead dioxide, forming black, dense masses or crystals, an alteration product of lead minerals. It's associated with grounding and stability but is toxic.
Primary Hues
Iron-Black, Brownish-Black, often forms crystalline crusts or massive
Geological & Scientific Details
Plattnerite is classified as a oxide minerals mineral which typically crystallizes in the tetragonal system. Its chemical formula is PbO2. Common crystal habits include prismatic crystals, may be nodular or botryoidal, fibrous and concentrically zoned, massive.
Key Geological Properties:
- Mineral Category: Oxide minerals
- Chemical Formula: PbO2
- IMA Symbol: Ptn[1]
- Crystal System: Tetragonal
- Formula Mass (g/mol): 239.20 g/mol
- Predominant Geological Color: Dark brown, iron-black
- Crystal Habit: Prismatic crystals, may be nodular or botryoidal, fibrous and concentrically zoned, massive
- Twinning: Contact and penetration twinning on {011}, rarely polysynthetic
- Cleavage: None
- Luster: Bright metallic to adamantine
- Streak: Chestnut brown
- Diaphaneity: Subtranslucent to opaque