Petrified Wood

saf-ahyuh r

Petrified wood is the fossilized remains of what once was wood. The material became petrified over time by the invasion of minerals into cavities between and within the cells of natural wood. Instead of decaying, the organic materials in the wood were replaced with minerals, primarily silicate of quartz, without changing the original structure of the wood.

Petrified Wood Polished
Petrified Wood Classification
Common Name Petrified Wood
Petrified Wood Optical Properties
Transparency Translucent - Opaque
Dispersion Strength: None
Refractive Index 1.535-1.539
Birefringence 0.004
Optic Character Uniaxial
Optic Sign Positive
Polariscope Reaction Aggregate (AGG)
Fluorescence SWUV: Inert
LWUV: Inert
Pleochroism None
Petrified Wood Characteristic Physical Properties
Hardness 6.5-7
Streak White
Specific Gravity 2.550-2.700 Typical:2.600
Toughness Excellent
Inclusions Petrified wood looks like a patterned jasper.
Luster Vitreous, Greasy
Stability Good
Fracture Conchoidal, Granular
Cleavage None
Petrified Wood Chemistry & Crystallography
Chemical Name silicon dioxide (aka silica)
Chemical Formula SiO2
Crystal System Trigonal
Chemistry Classification Silicate

Petrified Wood Colors

  • Brown Petrified Wood Brown
  • Yellow Petrified Wood Yellow
  • White Petrified Wood White
  • Red Petrified Wood Red
  • Purple Petrified Wood Purple
  • Pink Petrified Wood Pink
  • Orange Petrified Wood Orange
  • Multi-color Petrified Wood Multi-color
  • Green Petrified Wood Green
  • Gray Petrified Wood Gray
  • Colorless Petrified Wood Colorless
  • Blue Petrified Wood Blue
  • Black Petrified Wood Black
  • Bi-color Petrified Wood Bi-color

Alternate Names

Agatized Wood Or Silicified Wood

Countries of Origin

Niger (the); Papua New Guinea; Cambodia; Gambia (the); Kazakhstan; Paraguay; Solomon Islands; Montserrat; Unknown; Mali; Guadeloupe; Panama; Bonaire, Sint Eustatius and Saba; Argentina; Seychelles; Belize; Zambia; Bahrain; Guinea-Bissau; Saint Barthelemy; Namibia; Finland; Georgia; Yemen; Tanzania, United Republic Of; Eritrea; Puerto Rico; Viet Nam; Aruba; Madagascar; Libya; Sweden; Malawi; Andorra; Saint Helena, Ascension and Tristan da Cunha; Liechtenstein; Russian Federation (the); Poland; Bulgaria; Jordan; United States Minor Outlying Islands (the); Tunisia; Tuvalu; Kenya; French Polynesia; Djibouti; Lebanon; Azerbaijan; Cuba; Mauritania; Saint Lucia; Guernsey; Congo (the Democratic Republic of the); Mayotte; Israel; San Marino; Australia; Tajikistan; Myanmar; Cameroon; Gibraltar; Cyprus; Malaysia; Iceland; Oman; Bosnia And Herzegovina; Armenia; Gabon; Korea (the Republic of); Luxembourg; Brazil; Algeria; Cabo Verde; Jersey; Slovenia; Colombia; Ecuador; Iran (Islamic Republic of); United States of America (the); Vanuatu; Honduras; Italy; Antarctica; Turks and Caicos Islands (the); Nauru; Haiti; Afghanistan; Burundi; British Indian Ocean Territory (the); Singapore; French Guiana; American Samoa; Christmas Island; China; Martinique; Sudan (the); Kyrgyzstan; Comoros (the); United Kingdom of Great Britain and Northern Ireland (the); Reunion; Saint Pierre And Miquelon; Cote D'Ivoire; Bhutan; Multiple; Romania; Togo; Cocos (Keeling) Islands (the); Dominican Republic (the); Uzbekistan; Holy See (the); Netherlands (the); Pitcairn; Zimbabwe; Montenegro; Dominica; Indonesia; Benin; Angola; Virgin Islands (British); Brunei Darussalam; Portugal; New Caledonia; Grenada; Moldova (the Republic of); Greece; Latvia; Mongolia; Morocco; Guatemala; Guyana; Iraq; Chile; Nepal; Cayman Islands (the); Isle of Man; Ukraine; Ghana; Anguilla; Saint Vincent And The Grenadines; India; Canada; Maldives; Turkey; Belgium; Faroe Islands (the); South Africa; Bermuda; Aland Islands; Jamaica; Peru; Turkmenistan; Venezuela (Bolivarian Republic of); Germany; United Arab Emirates (the); Fiji; Tokelau; Hong Kong; Guinea; Chad; Somalia; Thailand; Cook Islands (the); Equatorial Guinea; Kiribati; Costa Rica; Saint Martin (French part); Kuwait; Nigeria; Central African Republic (the); Palestine, State of; Croatia; Sao Tome And Principe; Syrian Arab Republic; Sri Lanka; Uruguay; Timor-Leste; Switzerland; Samoa; Spain; Liberia; Burkina Faso; Swaziland; Lao People's Democratic Republic (the); Palau; Estonia; Wallis and Futuna; Niue; Svalbard And Jan Mayen; Austria; Mozambique; El Salvador; Monaco; Guam; Lesotho; Tonga; Heard Island And Mcdonald Islands; Western Sahara; Hungary; Republic of Kosovo; South Sudan; Congo (the); Japan; Belarus; Curacao; Mauritius; Taiwan (Province of China); Bouvet Island; Albania; Bolivia (Plurinational State of); Norfolk Island; Trinidad And Tobago; Virgin Islands (U.S.); New Zealand; Sint Maarten (Dutch part); Senegal; Micronesia (Federated States of); Ethiopia; Macedonia (the former Yugoslav Republic of); Czechia; Egypt; Falkland Islands (the) [Malvinas]; Marshall Islands (the); Sierra Leone; Malta; Saudi Arabia; South Georgia And The South Sandwich Islands; Pakistan; Ireland; Qatar; Slovakia; France; Lithuania; Serbia; Bahamas (the); French Southern Territories (the); Rwanda; Saint Kitts And Nevis; Bangladesh; Barbados; Nicaragua; Norway; Botswana; Macao; Denmark; Mexico; Northern Mariana Islands (the); Uganda; Suriname; Philippines (the); Greenland; Antigua And Barbuda

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This page was created on June 27, 2014.

This page was last edited on October 24, 2019.