mineral

Blue Lace Agate (polished pendant)

SiO2 (Silicon Dioxide) - Chalcedony variety

Hardness 6.5-7 on Mohs scale. Light blue and white banding, vitreous luster, cryptocrystalline structure, no cleavage.

Identified August 16, 2026More mineral →

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Physical properties

Hardness 6.5-7 on Mohs scale. Light blue and white banding, vitreous luster, cryptocrystalline structure, no cleavage.

Forms in cavities of volcanic rocks as silica-rich fluids deposit layers over time.

Commonly used in jewelry making, ornamental carvings, and for collecting.

The distinct banding is caused by rhythmic deposition of silica. Notable deposits are found in Namibia.

Identified by its distinctive light blue color with delicate white lacy bands. Often sold polished or tumbled.

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

Calcite–fluorite mineral specimen with iron-oxide staining

Calcite (CaCO₃), likely fluorite (CaF₂), with possible quartz and iron/manganese oxides

Mineral Sand (Heavy Mineral Sand Concentrate)

Placer deposit concentrate containing minerals such as ilmenite, rutile, zircon, and magnetite

Septarian Pebble

Septarian nodule / Concretion

Soil with Mineral Detritus and Quartz Fragments

Regolith / Silicate Mineral Aggregate

Schist