<style>/*<link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=3766405721248293436&zx=bf215fc1-eedd-4f1f-899c-ec8f94b2d68d' media='none' onload='if(media!='all')media='all'' rel='stylesheet'/><noscript><link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=3766405721248293436&zx=bf215fc1-eedd-4f1f-899c-ec8f94b2d68d' rel='stylesheet'/></noscript>
<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/>
<meta name='google-adsense-platform-domain' content='blogspot.com'/>

<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1021498709184325&host=ca-host-pub-1556223355139109" crossorigin="anonymous"></script>

<!-- data-ad-client=ca-pub-1021498709184325 -->

</head><body>*/</style>

Iridescent Hematite

Stunning Rainbow Hematite. Photo: Jose Miguel Sola Fdez.

Hematite, Jarosite, Quartz

The specimen in the photo is From: Filon 340, Rodalquilar, Níjar, Almería, Andalusia, Spain

Iridescent hematite, also called rainbow hematite, displays a variety of beautiful interference colours. Usually, a thin film comprised of aluminium and phosphate was found to coat such hematite, although one example of a coating with aluminium and arsenate was discovered. The thin films that range from tens to hundreds of nanometers thick are believed to cause the colour.

<style>/*
<script type="text/javascript" src="https://www.blogger.com/static/v1/widgets/517362887-widgets.js"></script>
<script type='text/javascript'>
window['__wavt'] = 'AOuZoY6WHHOz1nYo9WbZgZ0Yj48C5ezkiQ:1713479045845';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d3766405721248293436','//www.geologyin.com/2017/02/stunning-rainbow-hematite.html','3766405721248293436');
_WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '3766405721248293436', 'title': 'Geology In', 'url': 'https://www.geologyin.com/2017/02/stunning-rainbow-hematite.html', 'canonicalUrl': 'https://www.geologyin.com/2017/02/stunning-rainbow-hematite.html', 'homepageUrl': 'https://www.geologyin.com/', 'searchUrl': 'https://www.geologyin.com/search', 'canonicalHomepageUrl': 'https://www.geologyin.com/', 'blogspotFaviconUrl': 'https://www.geologyin.com/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': true, 'httpsEnabled': true, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': 'G-3PSM8JGB4R', 'analytics4': true, 'encoding': 'UTF-8', 'locale': 'en', 'localeUnderscoreDelimited': 'en', 'languageDirection': 'ltr', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Geology In - Atom\x22 href\x3d\x22https://www.geologyin.com/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22Geology In - RSS\x22 href\x3d\x22https://www.geologyin.com/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Geology In - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/3766405721248293436/posts/default\x22 /\x3e\n\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Geology In - Atom\x22 href\x3d\x22https://www.geologyin.com/feeds/1568832125719931004/comments/default\x22 /\x3e\n', 'meTag': '', 'adsenseClientId': 'ca-pub-1021498709184325', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': true, 'adsenseAutoAds': true, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/b42fd787ef432a12', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'interstitialAccepted': false, 'sharing': {'platforms': [{'name': 'Get link', 'key': 'link', 'shareMessage': 'Get link', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': 'Share to Facebook', 'target': 'facebook'}, {'name': 'BlogThis!', 'key': 'blogThis', 'shareMessage': 'BlogThis!', 'target': 'blog'}, {'name': 'Twitter', 'key': 'twitter', 'shareMessage': 'Share to Twitter', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': 'Share to Pinterest', 'target': 'pinterest'}, {'name': 'Email', 'key': 'email', 'shareMessage': 'Email', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27en\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': false, 'jumpLinkMessage': 'Read more', 'pageType': 'item', 'postId': '1568832125719931004', 'postImageThumbnailUrl': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLb5TTrsUckQPQZIJW9WI37hSVm4MgtlsQjKhOVRvu4oAv20b_bYFpLv5cAhnyemMW72k2tdfCwMVjkvABBkqdH1OlWkRuyOOy7QX3EcpXwhsKroHVK33okk3iuYd6Mk3ZoVNfqUrMLiqd/s72-w640-c-h420/Iridescent+hematite.jpg', 'postImageUrl': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLb5TTrsUckQPQZIJW9WI37hSVm4MgtlsQjKhOVRvu4oAv20b_bYFpLv5cAhnyemMW72k2tdfCwMVjkvABBkqdH1OlWkRuyOOy7QX3EcpXwhsKroHVK33okk3iuYd6Mk3ZoVNfqUrMLiqd/w640-h420/Iridescent+hematite.jpg', 'pageName': ' Iridescent Hematite', 'pageTitle': 'Geology In:  Iridescent Hematite'}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': 'Edit', 'linkCopiedToClipboard': 'Link copied to clipboard!', 'ok': 'Ok', 'postLink': 'Post Link'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': 'Custom', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': ' Iridescent Hematite', 'description': ' Stunning Rainbow Hematite.  Photo: Jose Miguel Sola Fdez.     Hematite, Jarosite, Quartz   The specimen in the photo is From: Filon 340, Ro...', 'featuredImage': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLb5TTrsUckQPQZIJW9WI37hSVm4MgtlsQjKhOVRvu4oAv20b_bYFpLv5cAhnyemMW72k2tdfCwMVjkvABBkqdH1OlWkRuyOOy7QX3EcpXwhsKroHVK33okk3iuYd6Mk3ZoVNfqUrMLiqd/w640-h420/Iridescent+hematite.jpg', 'url': 'https://www.geologyin.com/2017/02/stunning-rainbow-hematite.html', 'type': 'item', 'isSingleItem': true, 'isMultipleItems': false, 'isError': false, 'isPage': false, 'isPost': true, 'isHomepage': false, 'isArchive': false, 'isLabelSearch': false, 'postId': 1568832125719931004}}, {'name': 'widgets', 'data': [{'title': 'Logo', 'type': 'HTML', 'sectionId': 'header-main', 'id': 'HTML10'}, {'title': 'Icons, Dark, Search', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList10'}, {'title': 'Menu', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList11'}, {'title': 'ExtraMenu', 'type': 'LinkList', 'sectionId': 'extra-menu', 'id': 'LinkList15'}, {'title': 'Blog Posts', 'type': 'Blog', 'sectionId': 'blog-post', 'id': 'Blog1', 'posts': [{'id': '1568832125719931004', 'title': ' Iridescent Hematite', 'featuredImage': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLb5TTrsUckQPQZIJW9WI37hSVm4MgtlsQjKhOVRvu4oAv20b_bYFpLv5cAhnyemMW72k2tdfCwMVjkvABBkqdH1OlWkRuyOOy7QX3EcpXwhsKroHVK33okk3iuYd6Mk3ZoVNfqUrMLiqd/w640-h420/Iridescent+hematite.jpg', 'showInlineAds': false}], 'footerBylines': [{'regionName': 'footer1', 'items': [{'name': 'share', 'label': ''}]}], 'allBylineItems': [{'name': 'share', 'label': ''}]}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML13'}, {'title': '#You may also like', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML15'}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML14'}, {'title': 'Popular This Week', 'type': 'PopularPosts', 'sectionId': 'sidebar-static', 'id': 'PopularPosts1', 'posts': [{'title': 'Types of Drainage Patterns', 'id': 3398769537152699541}, {'title': 'Quartz: Types and Varieties of Quartz (Photos)', 'id': 8119240591136260011}, {'title': 'Anniversary Gemstones by Year', 'id': 1782957423361102205}, {'title': 'Fire Obsidian: The Rarest Type of Obsidian', 'id': 5635229631819586459}, {'title': 'World\x27s Oldest Natural Pearl Found', 'id': 1035863812348366073}, {'title': 'Facts About the Ring of Fire', 'id': 5685372588746491764}, {'title': 'Painite: One of the Rarest Gemstones in the World', 'id': 8041268610308487645}, {'title': 'Types of Agate With Photos ', 'id': 8763003016561632319}]}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'sidebar-sticky', 'id': 'HTML20'}, {'title': 'About Us', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML21'}, {'title': 'Learn More', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList13'}, {'title': 'Follow Us', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList14'}, {'title': 'Newsletter', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML22'}, {'title': '#Advertisement Popup', 'type': 'HTML', 'sectionId': 'extra-bottom', 'id': 'HTML24'}, {'title': 'SVG Icons', 'type': 'HTML', 'sectionId': 'jet-options', 'id': 'HTML27'}, {'title': 'License Key', 'type': 'HTML', 'sectionId': 'jet-options', 'id': 'HTML28'}]}]);
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML10', 'header-main', document.getElementById('HTML10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList10', 'header-main', document.getElementById('LinkList10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList11', 'header-main', document.getElementById('LinkList11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList15', 'extra-menu', document.getElementById('LinkList15'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog1', 'blog-post', document.getElementById('Blog1'), {'cmtInteractionsEnabled': false, 'lightboxEnabled': true, 'lightboxModuleUrl': 'https://www.blogger.com/static/v1/jsbin/3538472454-lbx.js', 'lightboxCssUrl': 'https://www.blogger.com/static/v1/v-css/13464135-lightbox_bundle.css'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML13', 'ads-post', document.getElementById('HTML13'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML15', 'ads-post', document.getElementById('HTML15'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML14', 'ads-post', document.getElementById('HTML14'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_PopularPostsView', new _WidgetInfo('PopularPosts1', 'sidebar-static', document.getElementById('PopularPosts1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML20', 'sidebar-sticky', document.getElementById('HTML20'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML21', 'footer-widget', document.getElementById('HTML21'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList13', 'footer-widget', document.getElementById('LinkList13'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList14', 'footer-widget', document.getElementById('LinkList14'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML22', 'footer-widget', document.getElementById('HTML22'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML24', 'extra-bottom', document.getElementById('HTML24'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML27', 'jet-options', document.getElementById('HTML27'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML28', 'jet-options', document.getElementById('HTML28'), {}, 'displayModeFull'));
</script>
</body>*/</style>