Gemstone profile and identification guide
Botswana Agate
Botswana agate is a finely banded agate variety known for subtle grey-brown and pinkish tones.
Profile Navigation
Overview
Botswana agate is a finely banded agate variety known for subtle grey-brown and pinkish tones.
Did you know? Botswana agate is widely recognized among lapidaries for exceptionally tight band patterns.
Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.
Identification
Name: Botswana Agate
Scientific classification: Silicate (Chalcedony Agate Variety)
Hardness: 7 Mohs
Transparency: translucent
Lustre: waxy
Crystal system: Trigonal (microcrystalline aggregate)
Primary colour: Grey
Secondary colour: Brown
Colour family: Greys
Fine repetitive parallel banding and muted grey-brown palette are key identifiers.
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.
Values are reported as practical gemological ranges where appropriate.
Physical Properties
Hardness category: hard
Hardness value: 7 Mohs
Chemical composition: Silicon dioxide (SiO2)
Crystal system: Trigonal (microcrystalline aggregate)
Common locations: Botswana
Learn more: Gem-A gemstone education resources.
Colour Variations
Fine banded agate in grey, white, pink-grey, and brown tones.
Optical effects: Banded Structure
Detailed Gemology
Mineral species: Quartz (chalcedony agate 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
Specific gravity: 2.58-2.64
Refractive index: 1.53-1.54
Optical phenomena: Banded structure
Colour range: Grey, white, pink-grey, brown
Common inclusions: Growth tubes, iron-oxide staining, microfractures
Geological environment: Volcanic cavity and fracture silica infill
Principal mining regions: Botswana
Important commercial sources: Classic Botswana agate is sourced from Botswana and identified by its fine parallel banding
Historical significance: A staple named agate locality in modern lapidary trade.
Common treatments: Dyeing and stabilization may occur in low-grade rough.
Synthetic or imitation forms: Dyed chalcedony and layered composites can imitate it.
Common look-alikes: Other banded agates, dyed chalcedony
Jewellery uses: Botswana Agate is used chiefly for Cabochons and beads where fine band spacing is visible.. 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: Quartz-hardness durability is good; avoid impact on thin carved forms.
Cross-check profile data with GIA Gem Encyclopedia and Mindat entry for Botswana Agate.
Formation
Forms by layered silica deposition in volcanic host-rock cavities.
Origin
Classic Botswana agate is sourced from Botswana and identified by its fine parallel banding
Uses
Best for: Botswana Agate is used chiefly for Cabochons and beads where fine band spacing is visible.. 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: Cabochons and beads where fine band spacing is visible.
Care
Quartz-hardness durability is good; avoid impact on thin carved forms.
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
Botswana Agate FAQ
How can I identify Botswana Agate?
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 Botswana Agate appear in?
Fine banded agate in grey, white, pink-grey, and brown tones.
Where is Botswana Agate commonly used?
Cabochons and beads where fine band spacing is visible.. For maintenance, follow the care guidance in this profile.
Scientific References
GIA: general gemstone identity (reviewed) - Batch 02 factual verification pass.
Gem-A: gemological terminology and testing references (reviewed) - Batch 02 factual verification pass.
Mindat: mineral species and principal localities (reviewed) - Batch 02 factual verification pass.
International Gem Society: gem trade context and treatment overview (reviewed) - Batch 02 factual verification pass.