About Portlandite
Calcium hydroxide, found naturally in some metamorphosed limestones or as a product of cement hydration. It's a grounding stone associated with stability.
Primary Hues
Colorless, White, often forms small hexagonal plates or massive
Metaphysical Properties
A grounding stone. Believed to promote stability and a practical approach to life.
Associated Tarot Cards
The Empress
Type: Major Arcana
Rationale: Symbolizes stability- grounding- and nurturing foundations- aligning with this calcium hydroxide.
Four of Pentacles
Type: Minor Arcana
Suit: Pentacles
Rationale: Symbolizes building strong- secure foundations- resonating with Portlandite.
Associated Deities
Hestia/Vesta
Pantheon: Greek/Roman
Domain: Hearth- Home- Stability
Rationale: Their energy of calm stability and foundational strength aligns here.
Gaia
Pantheon: Greek
Domain: Earth Mother
Rationale: Its formation from limestone connects it to foundational Earth energies.
Metaphysical Uses
Stability Rituals
Grounding Meditation
Nurturing Foundations Visualization
Please read our Metaphysical Disclaimer
Geological & Scientific Details
Portlandite is classified as a oxide mineral mineral which typically crystallizes in the trigonal system. Its chemical formula is Ca(OH)2. Common crystal habits include hexagonal plates; commonly fibrous, powdery, massive..
Key Geological Properties:
- Mineral Category: Oxide mineral
- Chemical Formula: Ca(OH)2
- IMA Symbol: Por[1]
- Crystal System: Trigonal
- Predominant Geological Color: Colorless, white to greenish white
- Crystal Habit: Hexagonal plates; commonly fibrous, powdery, massive.
- Cleavage: Perfect on {0001}
- Luster: Pearly on cleavages
- Diaphaneity: Transparent
Associated Minerals
- Calcite
- Ettringite
- Afwillite
- Jennite (found in contact metamorphic zones and in altered cement/concrete)