From the lab bench to the field, learning to identify rocks is about more than memorizing names—it’s about reading the story each stone tells. By observing texture, composition, and formation clues, ...

Identifying minerals blends careful observation with dependable tests that reveal each specimen’s unique signature. Geologists examine hardness, streak, luster, cleavage, and crystal habit to tell ...

Washington is full of earthly treasures. Local rockhound experts share their tips for how to find and collect agates, quartz ...

Possessive apostrophes show who or what owns something. The apostrophe goes in a different place depending on whether the owner is singular (one) or plural (more than one). Be careful with the word ...

Abstract: Spectroscopy can be used effectively in the first stages of mineral identification and exploration. Long wave infrared (LWIR) wavelengths are particularly useful in identifying diagnostic ...

National Geographic's Wonder Lessons will teach you how to navigate the stars, spot cloud types, recognize common trees, and ...

TROY — The Miami County Gem and Mineral Club’s 42nd annual rock show will be held April 25 and 26 at the Duke Lundgard Building at the Miami County Fairgrounds, located at 650 N. County Road 25A, Troy ...

Abstract: Hyperspectral Image (HSI) is a potent remote sensing (RS) technique, capturing images over numerous narrow, contiguous spectral bands. Unlike traditional RS methods, HSI offers detailed ...

Mineral liberation is an important variable to be considered in the iron ore geometallurgical studies, especially since it provides information leading to the understanding of the ore’s behaviour in ...

Intriguing Sapphire from Montana, a New Source of Emerald in Central China, and Arkansas Turquoise Duncan Pay, Editor-in-Chief Reports on a new source of primary gem-quality sapphire from Montana, ...