Gemstone profile and identification guide
Pink Chalcedony
Pink chalcedony is a pastel pink chalcedony variety used in beads and cabochon jewelry.
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Overview
Pink chalcedony is a pastel pink chalcedony variety used in beads and cabochon jewelry.
Did you know? Some vivid pink chalcedony products are dyed and should be disclosed accordingly.
Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.
Identification
Name: Pink Chalcedony
Scientific classification: Silicate (Chalcedony Quartz Variety)
Hardness: 7 Mohs
Transparency: translucent
Lustre: waxy
Crystal system: Trigonal (microcrystalline aggregate)
Primary colour: Pink
Secondary colour: Soft Rose
Colour family: Pinks
Chalcedony texture with consistent pink body color and quartz hardness are key cues.
Verification Status
Status: verified-core-fields
Reference priority: GIA, Gem-A, Mindat, International Gem Society
Core identity, locality, and physical-property fields reviewed against standard gemological references.
Trade-name entries include conservative composition and treatment disclosures where needed.
Physical Properties
Hardness category: hard
Hardness value: 7 Mohs
Chemical composition: Silicon dioxide (SiO2)
Crystal system: Trigonal (microcrystalline aggregate)
Common locations: Turkey, India, Brazil, Indonesia
Learn more: Gem-A gemstone education resources.
Colour Variations
Translucent pink chalcedony in soft pastel rose tones.
Optical effects: None specified in the current dataset.
Detailed Gemology
Mineral species: Quartz (chalcedony pink variety)
Mineral group: Quartz group
Chemical formula: Silicon dioxide (SiO2)
Mohs hardness: 7
Crystal system: Trigonal (microcrystalline aggregate)
Lustre: waxy
Transparency: translucent
Streak: White
Cleavage: None
Fracture: Conchoidal to uneven
Specific gravity: 2.58-2.64
Refractive index: 1.53-1.54
Optical phenomena: None typically diagnostic
Colour range: Pastel pink to rose
Common inclusions: Growth features, fractures, and matrix/inclusion structures as applicable
Geological environment: Species-dependent; see formation process
Principal mining regions: Turkey, India, Brazil, Indonesia
Important commercial sources: Pink chalcedony in trade may be natural or treated; supplier disclosure is important
Historical significance: Recognized in modern gem and mineral trade contexts.
Common treatments: Dyeing and impregnation may occur.
Synthetic or imitation forms: Imitations may exist depending on material category.
Common look-alikes: Species-dependent look-alikes in trade.
Jewellery uses: Pink Chalcedony is used chiefly for Soft-colour jewellery and decorative lapidary use.. In the trade it is commonly fashioned as faceted stones, calibrated cuts, and higher-clarity collector pieces, with Mohs hardness 7 guiding suitable jewellery applications.
Care recommendations: Durable for regular wear; avoid harsh chemicals and impact on thin sections.
Cross-check profile data with GIA Gem Encyclopedia and Mindat entry for Pink Chalcedony.
Formation
Forms by silica deposition in cavities and fractures in volcanic/sedimentary settings.
Origin
Pink chalcedony in trade may be natural or treated; supplier disclosure is important
Uses
Best for: Pink Chalcedony is used chiefly for Soft-colour jewellery and decorative lapidary use.. In the trade it is commonly fashioned as faceted stones, calibrated cuts, and higher-clarity collector pieces, with Mohs hardness 7 guiding suitable jewellery applications.
Ideal uses: Soft-color jewelry and decorative lapidary use.
Care
Durable for regular wear; avoid harsh chemicals and impact on thin sections.
Need another candidate? Use advanced gemstone search or return to the identification guide.
Related gemstones by colour
Related gemstones by hardness
Gemstones from the same mineral family
Commonly confused gemstones
Pink Chalcedony FAQ
How can I identify Pink Chalcedony?
Compare hardness (7 Mohs), crystal system (Trigonal (microcrystalline aggregate)), colour profile, and lustre (waxy) with your sample. Then cross-check related gemstones listed above.
What colour range does Pink Chalcedony appear in?
Translucent pink chalcedony in soft pastel rose tones.
Where is Pink Chalcedony commonly used?
Soft-color jewelry and decorative lapidary use.. For maintenance, follow the care guidance in this profile.
Scientific References
GIA: general gemstone identity (reviewed) - Batch 07 factual verification pass.
Gem-A: gemological terminology and testing references (reviewed) - Batch 07 factual verification pass.
Mindat: mineral species and principal localities (reviewed) - Batch 07 factual verification pass.
International Gem Society: gem trade context and treatment overview (reviewed) - Batch 07 factual verification pass.