ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Trovants- the growing stones of Romania

Updated on December 24, 2010
Trovants-growing stones
Trovants-growing stones

Trovants are found in Romania at two locations in Vâlcea County- the first location is a sand quarry before the entry in Costeşti village while the second location, which is a more spectacular one, is along Gresarea Brook that flows into a river in the nearby of the Oteşani.

South of central Romania these stone formations with alien features lie dormant, until it begins to rain. As soon as the last drops of water fall, they resume their process of multiplication. Small oval or round blain-like forms appear on the upper crusts of the previous year stones. People are left astounded and locals are surprised, when after a heavy rainfall these rock formations begin to ‘grow'  on their own.

 The term Trovant is specific to the Romanian geological literature and was introduced first by the naturalist Gh. M. Murgoci in his work "The Tertiary in Oltenia".Trovants, also known as "growing stones", are geological formations found in sand accumulations and sandstone deposits cemented by waters rich in calcium carbonate. They appear as mineral units, nodular, spherical or cylindrical with massive, concentric or plain structure ranging from a few millimeters to several meters. The trovants have a hard stone core, but their shells are made of sand. After every heavy rain shower, these stones in Central Romania display this unusual characteristic of self multiplication and growth. Their dimensions span anywhere from several mms to as large as six to eight metres. 

Study reveals that trovants can be formed only in large deposits of highly porous sand along with the presence of certain mineral carbonates. The growth of the stone happens when a chemical reaction sets in between the layers of sand and the mineral carbonates in the presence of rain water. As the reaction proceeds, it forms layers over the inner rock core. The rock thus appears to grow as layers of the sand and mineral carbonate product deposit at a rate of 4-5 cm in 1200 years. Small oval or round forms of the sand-mineral carbonate appear over the surface of the stone cores after a heavy shower, giving the appearance of a growing stone. Samples of trovants are kept on display at the Trovant Museum in Costesti, in the Valcea region of Romania.

What appeared to be a miracle of nature to the local Romanian is now a spectacular geological feat of nature unravelled by scientific study.

Comments

    0 of 8192 characters used
    Post Comment

    • profile image

      Bratari din piele 

      7 years ago

      Great place on Romania Ote?ani-Valcea. I saw more growing stones on this area.

    • justom profile image

      justom 

      7 years ago from 41042

      You're 2 for 2 today. I've never heard of this place either. Very interesting, thanks again! Peace!! Tom

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)