TS 6174

TS 6174 is a terminology standard for precious and semiprecious gemstones. It brings together the terms used for naturally occurring minerals that show gemstone properties, helping align how these materials are named and described across gemology, mineralogy, and trade use. In practice, this kind of standard reduces ambiguity when the same stone may be discussed in scientific, commercial, or descriptive contexts.

According to the supplied scope, the standard focuses on minerals formed in Earth’s geological environments that exhibit gemstone characteristics. It does not cover meteoric minerals, synthetic minerals and crystals, or imitation stones. That boundary matters because natural gemstones, laboratory-grown materials, and simulants may look similar but differ in origin, formation, and identification context.

Why gemstone terminology needs a common language

In general technical usage, gemstones are described through properties such as hardness, color, transparency, luster, crystal structure, and workability. A terminology standard does not measure those properties; it standardizes the words used to describe them. That makes the document useful wherever clear and consistent naming is needed, from mineral identification to jewelry-related documentation.

• Provides shared terms for naturally occurring gemstone minerals.
• Excludes meteoric minerals and synthetic or imitation materials.
• Supports consistent communication between mineralogical and commercial users.
• Helps keep gemstone classification language stable and unambiguous.