Metafields not displaying in product.liquid

[ShopifyKI]

We had a third party import values as metafields into shopify. I'm trying to use the metafields on our product.liquid page but they're not displaying. Here's an example of the code:

        {% if product.metafields.global.attribute.material-color %}  
        <div class="description rte" itemprop="description">  
         <b>Material Color:</b> {{ product.metafields.global.attribute.material-color }}
        </div>
        {% endif %}

The name space is: global
Key is: attribute.material-color

Is it because of the period in the key? All the values that were transfered used that format; attribute.NAME.

[mffowler]

Reference: https://help.shopify.com/themes/liquid/objects/metafield

I use a simple call which just uses the namespace:

{% for field in product.metafields.mColour %}<b>Colour:</b> {{ field | last }}<br />{% endfor %}

- Mike

[Jason]

If you need to grab a specific metafield with a period in the name you can do so like this:

{{ product.metafields.global['attribute.material-color'] }}

[ShopifyKI]

That worked. Thank you so much! I was having a lot of trouble with this.