Chert is a dense, hard siliceous-rock with low porosity made up of mainly of microcrystalline quartz and varying amounts of impurities. Cherts may form by compaction and recrystallization of silica-rich biogenic sediments made of opaline tests of single-cell organisms (diatoms, radiolaria) or remains of silicious sponges, both in marine and in lake environments. During diagenesis, the silica in the sediments undergoes a transformation from opal-A through opal-CT to microcrystalline quartz in the mature chert. Accordingly, these cherts may contain some opal-CT. Silica mobilized from volcaniclastic sediments, hydrothermal solutions and clay minerals may contribute to the silicification. [mindat.org]
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* Photos show all sides.
* Sizes, shapes and colors my vary due to being a natural stone, being hand-carved and/or difference in computer monitors.
Opal in Chert & Chalcedony • 52.3
Honey Opal in Red Chert & Chalcedony
- Unknown origin, probably Mexico
- 52.3 grams ~ 51x46x33mm
- Natural
- 90100OP-52-3
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Metaphysical properties are for your enjoyment and are not to be taken as medical advice.
- Chakra: Crown; also varies by color
- Astrological: Cancer, Libra, Pisces, Scorpio
- Number: 8
- Emotional: Calming, Comforting, Fear, Happiness, Inflexibility, Insecurity, Soothing, Stubbornness
- Physical: Birthing Problems and Health, Fever, Infection, Memory Health, Menstrual Cramps and Menstruation, Pineal Gland, Pituitary Gland, PMS, Poisons, Puberty
- Spiritual: Enhance Psychic Abilities