goethite

Because of this state change, goethite is a commonly seen as a pseudomorph.

The mineral, goethite, was found in a rock in the hills.

Other minerals such as topaz, fluorite and goethite have been found in the area.

Goethite-like structures are common because goethite is in the same space group as olivine.

Hematite-like structures occur in a similar fashion as goethite.

It is also a common form of goethite, smithsonite, fluorite and malachite.

Diffraction spots caused by goethite are diffuse even though the material is well oriented.

Oranges and browns are attributed to hematite or goethite.

He was fascinated by mineralogy, and the mineral goethite (iron oxide) is named after him.

The park was built on the site of some abandoned Goethite (iron ore) and marble quarries dating back to the 1830s.

The evidence included sulfates and the minerals goethite and carbonates which only form in the presence of water.

Over one million tons of iron ore (goethite) were mined at Mwyndy before the mine closed in 1884.

This allows for goethite to grow within the olivine making the close packed planes common for both structures.

Spirit Rover discovered sulfates and goethite in the Columbia Hills.

Bog ore often combines goethite, magnetite and vugs or stained quartz.

Often associated with pyrolusite, braunite, hausmannite and goethite.

The preferred orientation of olivine and goethite are when they are parallel with their z-axis.

The main iron ores are from the oxide group consisting of hematite, goethite, and magnetite.

Other important ores are goethite, magnetite, siderite, and bog iron (limonite).

Although they have the same chemical formula as goethite they each have different crystalline structures making them distinct minerals.

It is known to be a precursor of more crystalline minerals like hematite and goethite by aggregation-based crystal growth.

For instance, if scientists find goethite - essentially hematite with trapped water - that would strengthen the argument for past water.

The iron became fixed in place in the river channels and gradually replaced the existing humic material via replacement with goethite.

In the presence of water it weathers into minerals such as goethite, chlorite, smectite, maghemite, and hematite.

It is associated with magnetite, ilmenite, anatase, pyrite, marcasite, lepidocrocite and goethite.