About Howlite
A borate mineral, typically white or grey with dark veining, often resembling marble. It's an exceptionally calming stone, used to reduce stress, aid insomnia, and enhance patience and ambition. (Often dyed to mimic other stones).
Primary Hues
White, Cream, with grey or black veins/matrix
Geological & Scientific Details
Howlite is classified as a inoborates mineral which typically crystallizes in the monoclinic system. Its chemical formula is Ca2B5SiO9(OH)5. Common crystal habits include massive to nodular, occurs as tabular prisms flattened parallel to [100].
Key Geological Properties:
- Mineral Category: Inoborates
- Chemical Formula: Ca2B5SiO9(OH)5
- IMA Symbol: How[1]
- Crystal System: Monoclinic
- Predominant Geological Color: White, colorless
- Crystal Habit: Massive to nodular, occurs as tabular prisms flattened parallel to [100]
- Cleavage: None
- Luster: Subvitreous, glimmering
- Streak: white
- Diaphaneity: Translucent