sedimentary

Jasper (Red Jasper)

Silicon Dioxide (SiO₂)

Hardness: 6.5–7 (Mohs scale); Color: Brick red to brownish-red due to iron inclusions; Luster: Dull to greasy; Crystal Structure: Microcrystalline (trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.58–2.91.

Hardness: 6
Color: Brick red to brownish-red due to iron inclusions
Luster: Dull to greasy

Identified February 16, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed through the infiltration of silica in sedimentary or volcanic rock environments. Its red color is derived from iron(III) inclusions. It can be found in prehistoric riverbeds or hydrothermal veins, often dating back millions of years.

Uses & applications

Used primarily in lapidary work for jewelry, ornaments, and carvings. Historically used for seals and amulets. Also used in construction as decorative aggregate.

Geological facts

Red jasper was known as the 'rain-bringer' in ancient cultures. Despite the video's claim of 'red diamond,' diamonds are much harder and have a different crystal structure; jasper is an opaque variety of chalcedony.

Field identification & locations

Identify in the field by its opaque nature, smooth waxy feel when worn by water, and high hardness (it will scratch glass). Commonly found in riverbeds and desert environments globally, including India, Brazil, and the USA.