Deals of Blue Topaz for Faceting (100 grams - 200 grams )

Grab rare electric Swiss Blue Topaz for cutting or collections 

Details of Raw Topaz Deals:

• Stone: Topaz (Al₂SiO₄(F,OH)₂)
• Total Weight: 500 grams 
• Deals Available: 100 grams , 200 grams 
• Sizes: 1 to grams to 4 grams per piece
• Colors: Swiss  Blue Topaz
• Clarity: VVS, Eye clean
• Treatment: Heated
• Origin: Brazil

Technical Properties for Faceting:

• Hardness: 8 on Mohs scale
• Specific Gravity: 3.49-3.57
• Refractive Index: 1.609-1.643 (biaxial positive)
• Cleavage: Perfect basal cleavage {001}
• Fracture: Subconchoidal to uneven

Lapidary & Faceting Guidelines

Critical Handling Tips:

• Cleavage Awareness: Topaz has perfect basal cleavage - NEVER apply pressure perpendicular to the crystal's length
• Temperature Sensitivity: Avoid sudden temperature changes; heat slowly and cool gradually
• Orientation: Always orient the table perpendicular to the c-axis to minimize cleavage risk
• Pressure Control: Use light, consistent pressure when dopping and cutting

Cutting Recommendations:

• Preferred Cuts: Oval, cushion, emerald cut work best with topaz's crystal structure
• Avoid: Sharp corners or thin pavilions that stress cleavage planes
• Angles: Crown angles 40-43°, pavilion angles 41-43° for optimal brilliance
• Polish Direction: Always polish away from cleavage planes

Equipment & Materials:

• Saw: Diamond blade with light pressure
• Grinding: 220-400 grit for pre-forming
• Polishing: Cerium oxide or diamond paste on tin lap
• Dopping: Use low-temperature wax, avoid excessive heat

Frequently Asked Questions for Lapidaries

Q: Why does my topaz sometimes chip during cutting? A: You're likely cutting against the cleavage plane. Always check crystal orientation before starting.

Q: What's the best way to orient rough topaz? A: Look for the elongated crystal faces - the table should be cut perpendicular to this direction.

Q: Can I heat-treat these further? A: These are already heat-treated. Further heating may cause color loss or cracking.

Q: What causes the milky areas in some stones? A: Fluid inclusions or micro-fractures. These areas should be avoided or worked around.

Q: Best polishing technique for topaz? A: Use cerium oxide on tin lap with light pressure and consistent speed.

Premium Swiss Blue Topaz Faceting Rough - Professional Grade

• Exceptional Quality: Hand-selected VVS to eye-clean clarity specimens
• Vibrant Color: Electric Swiss Blue with excellent saturation and brilliance
• Perfect for Faceting: 1-4 gram pieces ideal for standard gem cuts
• Professional Grade: Heat-treated Brazilian material with consistent quality
• Lapidary Ready: Pre-sorted for optimal cutting potential
• Bulk Savings: Available in 100g and 200g wholesale quantities
• Collector Quality: Museum-grade specimens suitable for serious collectors
• Guaranteed Results: Each piece carefully inspected for faceting viability
• Expert Sourced: Direct from Brazilian mines with full provenance
• Investment Grade: Rare electric blue color commands premium prices