Material reference
Lava Rock · Apoy na Naging Bato
Scientific identity, documented history, and community contexts are presented with sources. TÁWID’s contemporary design interpretation is identified separately.
Material identity
“Lava rock” is a broad description of volcanic material, not a single mineral or fixed rock composition. The National Museum of the Philippines distinguishes extrusive rocks such as basalt, andesite and rhyolite. USGS explains that vesicles are cavities left when dissolved gases escape as lava cools. Their abundance and shape preserve information about cooling and degassing. A porous texture alone does not identify every jewellery bead as basalt. [1]
Documented historical context
Volcanic materials have histories of human selection as well as geological formation. A Smithsonian collection record describes a basalt adze with spiral relief as Polynesian, probably Māori, and pre-eighteenth century. This places a particular volcanic rock within an identifiable tool-making and design setting.
Dense tool stone and highly vesicular ornamental material can have different working properties. A bracelet’s drilled, rounded beads belong to a different manufacturing process from an adze; the historical tool is a comparison in volcanic-stone use, not an established ancestor of every modern “lava rock” bracelet. [3]
Philippine and community context
The Philippine museum’s igneous-rock classification provides a local scientific starting point for discussing a volcanic archipelago. A local geological context is not, however, proof of local extraction. For a specific bracelet, supplier records and examination are needed before naming a Philippine volcano or community as its source. [2]
TÁWID’s contemporary interpretation
Apoy na Naging Bato is TÁWID’s contemporary reflection on change and persistence.
Material note
Describe the actual material and any coating when known. A volcanic appearance should not be used as a substitute for provenance.
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