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Graphite from Ceylon (Sri Lanka).
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5900 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon principally occurs in its native state as the minerals graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. Graphite has a metallic luster and a silvery-gray color. It is very soft (H = 1), has a slick, greasy feel, and readily marks paper. Graphite does have cleavage, but it is not apparent at the hand specimen scale. The ability of graphite to mark paper, its softness, and its greasy feel are all a consequence of cleavage sheets easily slipping over each other on a microscopic scale.
Locality: unrecorded / undisclosed site in Ceylon / Sri Lanka (attributed to "Colombo")
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''La musique que proposent Tim et Meriadeg est une embarcation vers l’inconnu, le polymorphe et la rêverie. L’issue du périple est aussi incertaine que virtuose, la mécanique des sens est réglée sur intense, les questions fusent et se défont au gré de mille réponses qui coulent de source. On est en mer, sur le dos d’une vague en transhumance ou à terre au milieu des herbes hautes, qu’importe !!!… on est bien.''
Pas besoin de balances pour ce ''tandem acoustique résolu à dénicher et composer des mélodies simples, jolies ; puis jouer, s'en amuser.'' Fort de l'attachement de ces deux musiciens ''aux musiques traditionnelles, vivantes, étonnantes et voyageuses'' il a juste fallu qu'Estelle entame les deux chants qu'elle souhaitait proposer à son public en leur compagnie pour qu'une demi-heure plus tard tout soit en place ...
''La musique que proposent Tim et Meriadeg est une embarcation vers l’inconnu, le polymorphe et la rêverie. L’issue du périple est aussi incertaine que virtuose, la mécanique des sens est réglée sur intense, les questions fusent et se défont au gré de mille réponses qui coulent de source. On est en mer, sur le dos d’une vague en transhumance ou à terre au milieu des herbes hautes, qu’importe !!!… on est bien.''
Pas besoin de balances pour ce ''tandem acoustique résolu à dénicher et composer des mélodies simples, jolies ; puis jouer, s'en amuser.'' Fort de l'attachement de ces deux musiciens ''aux musiques traditionnelles, vivantes, étonnantes et voyageuses'' il a juste fallu qu'Estelle entame les deux chants qu'elle souhaitait proposer à son public en leur compagnie pour qu'une demi-heure plus tard tout soit en place ...
STRI investigates the role of sexual selection in the evolution and
maintenance of this paradoxical polymorphism.
If frogs choose mates based on their color,
polymorphism may eventually lead to speciation.
This look is for all of the iconic Vampire Horror Movies so I did a Sexy Vampire.
Products Used:
Polymorph Plastic for the teeth
General beauty makeup
Contacts are photoshopped
Acleris cf. A. emargana - Notch-wing Button 3559
Wingspan ~19mm F#3824
RWWA-3825 BOLD DNA ; All matches from 96-99.2% for Acleris (formally Pyralis) emargana (Fabricius 1775) or cf. A. emargana and a couple for Acleris effractana (Hübner, 1799). DNA has shown Acleris emargana is found from Europe to Siberia, northern China, Korea and Japan and in North America. A. effractana seems to be used as the North American species contrary to DNA indicating A. emargana in NA plus A. effractana is found in Europe also. The data strongly suggests A. emargana and A. effractana are synonyms of a species which exhibits a high degree of polymorphism like certain other tortricids.
www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxon=...
www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxon=...
Collection Locality: Coastal SW Washington State at the edge of Willapa Bay geo:lat=46 37.273 geo:lon=-123
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 6100 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The carbonate minerals all contain one or more carbonate (CO3-2) anions.
Aragonite has the same chemistry as calcite - it is calcium carbonate (CaCO3). Why is it a different mineral? Aragonite has a different molecular structure - the atoms are packed differently. Different minerals having the same chemical formula are called polymorphs (another good example is graphite & diamond - both C).
The difference in atomic-level packing between calcite and aragonite can be seen at the level of mineral hand samples. Aragonite forms crystals in the orthorhombic class. Many aragonite crystals are acicular (needle-like). Many aragonites form pseudohexagonal crystals, the result of 6 orthorhombic prisms growing parallel to each other. The specimen seen here is a top view of a cyclic-twinned, pseudohexagonal aragonite mass.
Aragonite is slightly harder than calcite, at H=3.5 to 4, occurs in many colors, and easily bubbles in acid. Aragonite is a little bit heavier than calcite, due to closer packing of atoms.
Most modern seashells & coral skeletons are composed of the aragonite. Whitish-colored lime sand beaches in the world are aragonitic. Occasionally, "whitings" are seen in shallow, warm ocean environments. Whitings (cloudy, milky seawater) turn out to be loaded with tiny hair-like needles of aragonite.
In the rock record, aragonitic or aragonite-rich sediments convert to calcite over time. Cenozoic-aged carbonate sedimentary rocks are often aragonitic. Mesozoic- and Paleozoic-aged carbonates are almost always calcitic. Many ancient fossils have had their aragonitic shells dissolved away. Ancient shells that were originally calcitic are often still well preserved.
Locality: unrecorded / undisclosed, but possibly from Spain
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Photo gallery of aragonite:
''La musique que proposent Tim et Meriadeg est une embarcation vers l’inconnu, le polymorphe et la rêverie. L’issue du périple est aussi incertaine que virtuose, la mécanique des sens est réglée sur intense, les questions fusent et se défont au gré de mille réponses qui coulent de source. On est en mer, sur le dos d’une vague en transhumance ou à terre au milieu des herbes hautes, qu’importe !!!… on est bien.''
Pas besoin de balances pour ce ''tandem acoustique résolu à dénicher et composer des mélodies simples, jolies ; puis jouer, s'en amuser.'' Fort de l'attachement de ces deux musiciens ''aux musiques traditionnelles, vivantes, étonnantes et voyageuses'' il a juste fallu qu'Estelle entame les deux chants qu'elle souhaitait proposer à son public en leur compagnie pour qu'une demi-heure plus tard tout soit en place ...
Resistance to Hpa compared with overall Arabidopsis phylogeny. The phylogenetic tree on the left represents a reconstruction of the overall genealogy of 72 Arabidopsis accessions derived from 205k genome-wide small nucleotide polymorphism data published previously [13]. Bootstrap values (>70) are displayed on the branches of the tree. The Hpa sporulation data obtained in this study is displayed on the right and color-coded according to the ability of the pathogen to produce sporangiophores: red – no sporulation, orange – sporulation only on cotyledons, but not on true leaves, yellow – sporulation on both cotyledons and true leaves.
Graphite with pyrite nodule from Ceylon (Sri Lanka).
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5900 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon principally occurs in its native state as the minerals graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. Graphite has a metallic luster and a silvery-gray color. It is very soft (H = 1), has a slick, greasy feel, and readily marks paper. Graphite does have cleavage, but it is not apparent at the hand specimen scale. The ability of graphite to mark paper, its softness, and its greasy feel are all a consequence of cleavage sheets easily slipping over each other on a microscopic scale.
Locality: unrecorded / undisclosed site in Ceylon / Sri Lanka (attributed to "Colombo")
The Camera Tracking/Crew/equipment transport vehicle parked next to the star car outside the norweigan church.
Polymorph Feather-Duster Worm (Eudistylia polymorpha), Pillar Point, Half Moon Bay, CA, August 14, 2011
A species which is variable in flower colour and leaf spotting. Cambourne seems to have almost the full range of colour combinations.
''La musique que proposent Tim et Meriadeg est une embarcation vers l’inconnu, le polymorphe et la rêverie. L’issue du périple est aussi incertaine que virtuose, la mécanique des sens est réglée sur intense, les questions fusent et se défont au gré de mille réponses qui coulent de source. On est en mer, sur le dos d’une vague en transhumance ou à terre au milieu des herbes hautes, qu’importe !!!… on est bien.''