


Tufa Casting Stone – 7" Block for Jewelry (Free Slicing Available)
📝 Product Description:
This hand-selected tufa stone block measures approximately 7 x 2.75 x 2.75 inches—perfect for small cuff bracelets, rings, pendants, and other one-of-a-kind castings. Tufa is a naturally porous volcanic stone used in traditional metalsmithing, known for its soft, carvable texture and ability to capture exquisite detail.
🪵 Each block is:
Photographed individually—you’ll receive the exact stone shown
Pre-sized and cut to be workshop-ready
Deemed casting quality by instructor Kristina Malcolm
Sliceable at no extra charge—just leave a note at checkout
This is the same material used in Kristina’s Tufa & Torch class series, trusted by students and professionals alike.
✅ Ideal for:
Small cuff bracelets
Organic ring forms
Amulets, medallions, and sculptural jewelry
Low-tech, torch-based casting
💡 Want a full kit? A tufa casting bundle including crucible and flux will be available soon—stay tuned or join the mailing list!
⚠️ Tufa is recommended for silver and other low-temp alloys. Not suitable for high-pressure pours or high-melt metals like bronze.
💵 Price:
$42
Shipping calculated at checkout.
📝 Product Description:
This hand-selected tufa stone block measures approximately 7 x 2.75 x 2.75 inches—perfect for small cuff bracelets, rings, pendants, and other one-of-a-kind castings. Tufa is a naturally porous volcanic stone used in traditional metalsmithing, known for its soft, carvable texture and ability to capture exquisite detail.
🪵 Each block is:
Photographed individually—you’ll receive the exact stone shown
Pre-sized and cut to be workshop-ready
Deemed casting quality by instructor Kristina Malcolm
Sliceable at no extra charge—just leave a note at checkout
This is the same material used in Kristina’s Tufa & Torch class series, trusted by students and professionals alike.
✅ Ideal for:
Small cuff bracelets
Organic ring forms
Amulets, medallions, and sculptural jewelry
Low-tech, torch-based casting
💡 Want a full kit? A tufa casting bundle including crucible and flux will be available soon—stay tuned or join the mailing list!
⚠️ Tufa is recommended for silver and other low-temp alloys. Not suitable for high-pressure pours or high-melt metals like bronze.
💵 Price:
$42
Shipping calculated at checkout.