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Hematite (/ ˈ h iː m ə ˌ t aɪ t, ˈ h ɛ m ə-/), also spelled as haematite, is a common iron oxide compound with the formula, Fe 2 O 3 and is widely found in rocks and soils. [6] Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of Fe 2 O 3. It has the same crystal structure as corundum ...
The islands have become highly noted for their flora and fauna, attracting ecotourists. One endemic, the Chatham Islands forget-me-not (Myosotidium hortensia), has become a botanical symbol of the islands due to its widespread cultivation in and outside New Zealand. [3] [2] The Chatham archipelago comprises 40 islands and rocks.
The project was started in 1995 on a former landfill and only opened to the public in 2014. [1] The valuable palm collection gathers about 600 species of palms and it is focused on the ones native to world islands. Trees and shrubs of other plant families are also displayed, organised in "biogeographical sections".
Samoa: Country Report to the FAO (Food and Agriculture Organisation of the United Nations) International Technical Conference on Plant Genetic Resources, (Leipzig, 1996); Report prepared by Seve T. Imo, William J. Cable, Apia, October, 1995. Kava: its ceremonial use, An Account of Samoan History up to 1918 by Teo Tuvale.
In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...
There are no plant species endemic to the islands; however, one variety of Pandanus tectorius, P. tectorius var. cocosensis, [1] is only found growing on these islands. The native vegetation of the two atolls primarily consists of sea-dispersed shoreline plants of the Indo-Pacific region.
Tree remains that have undergone petrifaction, as seen in Petrified Forest National Park. In geology, petrification (from Ancient Greek πέτρα (pétra) 'rock, stone') is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.
A rough specimen of bloodstone. Heliotropes (from Ancient Greek ἥλιος (hḗlios) 'sun' and τρέπειν (trépein) 'to turn') (also called ematille, Indian bloodstones, or simply bloodstones) are aggregate minerals, and cryptocrystalline mixture of quartz that occurs mostly as jasper or sometimes as chalcedony (translucent).