Jasper

Main Elements:

Si, O, Fe, Al

Chemical Composition:

SiO₂ (Chalcedony) with various impurities (iron, clay) causing colors and opacity

Density:

2.5-2.9 g/cm³

Compressive Strength:

Variable

Melting Point:

1713°C

Formation:

Forms in a variety of environments: sedimentary deposits, volcanic rocks, and as a replacement mineral. Often contains inclusions and impurities.

Composition:

Composed of chalcedony (microcrystalline quartz) with various impurities like iron oxide and clay minerals that cause the colors and opacity.

Types:

• Red Jasper
• Picture Jasper
• Ocean Jasper
• Polychrome Jasper
• Brecciated Jasper
• Leopard Skin Jasper

Etymology:

Derived from the Greek word "iaspis" meaning "spotted stone", referring to its often patterned appearance.

Uses:

• Jewelry
• Carvings
• Decorative items
• Collector specimens
• Cabochons
• Cameos

Distribution:

Found worldwide, especially India, Russia, Egypt, Australia, and the United States

Historical Use:

Used for thousands of years in jewelry and carvings. Ancient Egyptians used jasper in amulets and jewelry. It was mentioned in the Bible.

Symbolism:

Represents protection, grounding, and strength. Different colors have different meanings - red jasper is associated with courage and energy.

What is the difference between jasper and agate?

Jasper is opaque and often contains inclusions, while agate is translucent with distinct bands. Both are varieties of chalcedony (microcrystalline quartz).

What colors does jasper come in?

Jasper comes in many colors: red, yellow, green, brown, and multicolored varieties. Picture Jasper has landscape-like patterns!

Is jasper valuable?

Jasper value varies. Rare patterns like Picture Jasper or Ocean Jasper command higher prices, while common red jasper is more affordable.