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Habit = a skill, and like every skill extremely difficult to ignore.
Hair fissure = also known as a hairline crack, a subtle but dangerous break in the stone, which will often spread as the stone is worked.
Hammer = see Tools & Techniques
Hammerstone = stone, often a river or beach pebble, which has been used as a pounding tool. Identified by patches of damage on one or both ends.
Haptic = Haptics refers to the sense of touch (from Greek πτω = "I fasten onto, I touch"). Haptic perception is the recognition and experience of objects through touch. It involves feeling patterns on the objects surface (the edges, bumps, curvature, and texture) and somehow positioning these qualities in relation to the perceiver's body.
Haptic perception is active exploration and there is a close link between haptic perception and body movement, having much to do with the extension of our senses away from our bodies and into the adjacent world. When we use a tool or drive a car our perceptual experience is transparently transferred to the end of the tool or the boundary of the car.
Haptic perception internalises the forces originally experienced as touch, and this allows the creation of 'virtual' experiences, such as knowing a rough surface without needing to touch it.
Head stone = in archeology the stone slab in the wall of a megalithic chamber which faces the tomb entrance; in contemporary usage, a tombstone in a cemetery.
Henge = a Late Neolithic British earth enclosure of bank and ditch. A henge can have either a single entrance or sometimes two or more entrances.
Holed stones = stones with holes in them tend to attract legends, traditions or superstitions. Many examples could be sited. For instance, at Antrim, Northern Ireland there is a standing stone of about 1.5 meters high with a 10 cm hole in it. Its origins are unknown. There is a tradition involving a ceremony in which the woman reaches her hand though the stone and her partner takes it, thereby pledging through that act and that hole to love each other forever. Frequently the legends have to do with healing or fertility.
Hornblende = a mineral closely allied to augite, and having as its chief constituents silica, magnesia, and lime. It is usually of a dark brown, black, or greenish black colour, has numerous varieties, both aluminous and non-aluminous and is a constituent of many rocks such as granite, syenite, and diorite. Sometimes forms of hornblend, (such as actinolite, antholite, asbestos, dannemorite, nephrite, or tremolite) are included under the name amphibole.
Hyle = matter, substance; the first matter of the universe — a word given significance by Aristotle. Hyle is mostly obsolete except in combined words and within philosophical discussions.
[Medieval Latin, hylea. Greek for wood, timber, material. Extended through usage to have more general significance as 'matter' Variants: yle, hile, hyla.]
Hylic = an adjective referring to matter, material, basic substance.
(In Gnostic theology opposed to psychic and pneumatic.)
[from medieval Latin, hylic-us. Originally Greek for material, f. hyle. See previous]
Hylopathism = the doctrine that matter is sentient.
Hypabyssal rocks = (or hypabyssal ) formed from magma which has intruded into and solidified among other rocks; an igneous rock intermediately between plutonic and volcanic.
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