Splintery Fracture glossary term at minerals.net educational reference guide
In the field of mineralogy, fracture is the texture and shape of a rock's surface formed when a mineral is fractured.Minerals often have a highly distinctive fracture, making it a principal feature used in their identification. Fracture differs from cleavage in that the latter involves clean splitting along the cleavage planes of the mineral's crystal structure, as opposed to more general ...
minerals In mineral: Cleavage and fracture Splintery fracture is breakage into elongated fragments like splinters of wood, while hackly fracture is breakage along jagged surfaces.
Splintery: Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende). Sugary: Fracture surfaces produced by finely aggregated minerals, (e.g. massive anhydrite). Tough: Difficult to break apart as shown by fibrous minerals and most metals. Unknown: Minerals too small to observe fractures. Uneven
The splintery fracture normally occurs in minerals that are fibrous or acicular. The chrysotile serpentine is a mineral, which has this splintery fracture. The earthy fracture is similar to the texture of the broken clay. This type of fracture is located in minerals that are massive in size and are loosely consolidated. This includes minerals ...
Splintery is a fracture type that occurs in fibrous or finely acicular minerals and in minerals that have a relatively stronger structure in one direction than the other two. Chrysotile serpentine is a typical mineral with splintery fracture and kyanite is an example of a non-fibrous mineral that has this fracture.
Fracture: When a break is not cleavage or parting, it is fracture. There are only a few terms used to describe the nature of mineral fracture. They include conchoidal, hackley, splintery, even, uneven, earthy, or rough. Most are easily understood, but there are two that may need explanation: conchoidal and probably hackley. Conchoidal Fracture:
Hackly - Fracture that resembles broken metal, with rough, jagged, points. True metals exhibit this fracture. (This fracture is also known as "jagged".) Splintery - Fracture that forms elongated splinters. All fibrous minerals fall into this category. Earthy or crumbly - Fracture of minerals that crumble when broken.
Mineral Identification Chart – LECTURE NONMETALLIC MINERALS (listed in decreasing hardness) Review mineral formula to connect to family! H=Hardness; SG = specific gravity Mineral H SG Streak Color (and/or luster) Form Cleavage/Fracture Distinctive properties
Fracture - Fracture represents a mineral break other than along a cleavage or parting plane. Breaks may occure in any direction but are usually around some imperfection in the mineral. This collection contains 10 Minerals having Property of Even, Uneven, Conchoidal, Subconchoidal, Splintery& Hackly Fracture