Geological & Scientific Properties | Ocean Jasper
Ocean Jasper, also known as Orbicular Jasper or Sea Jasper, is a striking and highly sought-after variety of jasper. It is renowned for its unique orb-like patterns and vibrant colors. Ocean Jasper is only found in one location in the world, along the rugged coastal shores of northwestern Madagascar. Here's an overview of Ocean Jasper's geological and scientific properties:
Chemical Composition and Structure:
- Composition: Ocean Jasper is a form of chalcedony, which is a variety of quartz (silicon dioxide, SiO₂). It is characterized by its orbicular patterns and may include a variety of other minerals, which contribute to its wide range of colors and patterns.
- Crystal System: Like other forms of quartz, it crystallizes in the hexagonal system, typically forming microcrystalline aggregates.
Physical Properties:
- Color and Patterns: Ocean Jasper can display a broad spectrum of colors, including green, pink, red, yellow, brown, white, and blue. Its most distinctive feature is its circular patterns or "orbs," which can vary greatly in color and size.
- Hardness: It shares the same hardness as quartz, rating a 7 on the Mohs scale.
- Luster: This variety of jasper typically has a vitreous to waxy luster.
- Transparency: Ocean Jasper is generally opaque.
Geological Occurrence:
- Formation: Ocean Jasper is formed in silica-rich volcanic rocks as a result of hydrothermal activity. The orbs are created by the radiating growth of quartz and feldspar around a core.
- Location: The only known deposit of Ocean Jasper is located along the coast of Madagascar, accessible only by boat and mined primarily during low tide.
Use and Significance:
- Ocean Jasper is popular among collectors and artisans for its aesthetic appeal and is often used in jewelry, lapidary arts, and as decorative pieces.
- In metaphysical circles, it is believed to have soothing and healing properties, although these claims are not scientifically proven.
The rarity and unique beauty of Ocean Jasper, with its mesmerizing patterns and vibrant colors, make it a prized specimen in the world of gemstones and minerals. Its exclusive geographic origin adds to its allure and desirability among collectors and enthusiasts.
