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Micromount specimen collecting has a number of advantages over collecting larger specimens. Micromount specimens take up less space and cost less than larger specimens. Small crystals are usually more perfect than larger ones. Micromount material can often be readily collected at locations that rarely if ever yield specimens with large crystals.
Creedite specimen, 11 x 7 x 3 cm, from Santa Eulalia, Chihuahua, Mexico; formerly in the Perkins D. Sams collection. Mineral collecting is the hobby of systematically collecting, identifying and displaying mineral specimens. Mineral collecting can also be a part of the profession of mineralogy and allied geologic specialties
Most commonly, rock and mineral samples are prepared as thin sections or grain mounts for study in the laboratory with a petrographic microscope. Optical mineralogy is used to identify the mineralogical composition of geological materials in order to help reveal their origin and evolution.
Rich specimen from a 2009 gold discovery by a prospector in southeastern Yukon Territory. The gold, deposited along a fracture, appears rusty-orange in this photo. Prospecting is the first stage of the geological analysis (followed by exploration) of a territory. It is the search for minerals, fossils, precious
One reason for the rise in popularity of amateur geology is that a collection can begin by simply picking up a rock. There are people who have formed clubs and groups that search for specimens and compare them with collections from other groups as a hobby. Information on such groups can be found at libraries, bookstores, and "gem and mineral ...
In geology, phase contrast is exploited to highlight differences between mineral crystals cut to a standardised thin section (usually 30 μm) and mounted under a light microscope. Crystalline materials are capable of exhibiting double refraction , in which light rays entering a crystal are split into two beams that may exhibit different ...
A light micrograph or photomicrograph is a micrograph prepared using an optical microscope, a process referred to as photomicroscopy.At a basic level, photomicroscopy may be performed simply by connecting a camera to a microscope, thereby enabling the user to take photographs at reasonably high magnification.
In mineralogy, the type specimen, also known as type material, is a reference sample by which a mineral is defined. [1] Similar to the biology type methods, a mineral type specimen is a sample (or in some cases a group of samples) of a mineral to which the scientific name of that mineral is formally attached. In other words, a type specimen is ...